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         Securities and Exchange Commission
         450 Fifth Street, N.W.
         Washington, D.C. 20549
                                The BOC Group plc
                         Commission File Number 0-10906
                   Response to SEC letter dated 11 April 2005
                   ------------------------------------------


         Ladies and Gentlemen:

         On behalf of The BOC Group plc, please find enclosed a copy of the
Company's response to a letter received from Mr John Cash, Accounting Branch
Chief, dated 11 April 2005 submitted electronically through EDGAR, under the
Securities Exchange Act of 1934, as amended.

          If the Staff wishes to discuss this matter at any time, please
telephone (collect) any of Sarah Larkins, Assistant Company Secretary, The BOC
Group plc at +44 1276 807383, or Kyuli Oh, Shearman & Sterling LLP at +44 20
7655 5875.



                                                Very truly yours,


                                                /s/ Kyuli Oh





                                  May 13, 2005


Via EDGAR Transmission
- ----------------------

Mr. John Cash
Accounting Branch Chief
Division of Corporate Finance
United States Securities and Exchange Commission
450 Fifth Street, N.W.
Washington D.C. 20549
USA


RE:   The BOC Group plc
      Form 20-F for fiscal year ended September 30, 2004
      File No. 0-10906


Dear Mr. Cash,

We are writing in response to your letter of April 11, 2005, containing comments
with respect to the Form 20-F Report of The BOC Group plc for the fiscal year
ended September 30, 2004. The responses set forth below have been organized in
the same manner in which the Staff's comments were organized. For your
convenience, we have repeated your comments along with our reply. Capitalized
terms used in this letter without definition are used as defined in the Form
20-F for 2004.



Item 3.A. - Key Information - Selected Financial Data
- -----------------------------------------------------

1.    We note the sections of your annual report that are incorporated by
      reference. While you have provided the information required under Item
      3.A.2. of Form 20-F under UK GAAP, you do not appear to have provided the
      US GAAP equivalent for any of these measures, except for net income and
      shareholders' funds in Note 30. As indicated in the minutes to the AICPA
      International Practices Task Force July 15, 2003 meeting, specifically
      Agenda Item 12, the SEC staff confirmed that if any amount required to be
      presented in selected financial data on a primary GAAP basis is different
      on a US GAAP basis, then the corresponding amount under US GAAP should
      also be shown. Please revise future filings accordingly.

      Your comments are noted and the information will be provided in future
      filings.



Item 5 - Operating and Financial Review and Prospects
- -----------------------------------------------------

Item 5.A. - Operating Results
- -----------------------------

2.    We note your operating review, beginning on page 34 of your Annual Report.
      In future filings, when you discuss the reasons for the changes in your
      results from year to year, please quantify the impact of each reason that
      you provide, if possible. For those


                                                                    Page 1 of 12


Mr. John Cash
U.S. Securities and Exchange Commission
May 13, 2005
Page 2


      segments where you discuss the results by geographic region, please
      quantify the results contributed by each geographic region to provide your
      readers with insight into the relative importance of each region to your
      results.

      Your comments are noted. Beginning with the 2005 to 2004 comparison, the
      impact of significant reasons for changes in results will be quantified,
      where possible. In the business segment operating review, the company will
      also include the revenues provided by different geographic regions (either
      by amount or percentage) where that information is helpful to an
      understanding of the importance of a particular region to the company's
      results.



Item 5.B. - Liquidity and Capital Resources
- -------------------------------------------

3.    Please revise future filings to provide an analysis of the sources and
      uses of your cash flows in accordance with Item 5.B.1(b) of Form 20-F.
      Also refer to Release 33-8350.

      Your comments are noted. The company will provide the requested
      information in future filings.



4.    We note that your tabular debt maturity profile does not include the
      interest commitments related to your debt. In future filings, include the
      interest commitments under your interest-bearing debt in this table, or
      provide textual discussion of this obligation in the footnotes to the
      table. If you provide a textual discussion, the discussion should quantify
      the interest payments using the same time frames stipulated in the table.
      Refer to footnote 46 to Release 33-8350.

      Your comments are noted. The company will provide the requested
      information in future filings.



Critical Accounting Policies - Retirement Benefits
- --------------------------------------------------

5.    Notwithstanding your belief that it would be impracticable and potentially
      misleading to give any approximate impact on annual Group operating profit
      of a change in any one assumption in isolation, we believe that this
      information is necessary for a reader's understanding of this critical
      accounting policy. Please provide such information in future filings. We
      believe your discussion of the fact that there are a number of elements
      used in the assumptions, that they vary for the different countries in
      which the Group operates, and that there may be an inter-dependency
      between some assumptions is a helpful reminder to readers that they should
      not view the impact of a change in individual assumptions in isolation.

      Your comments are noted. The narrative in future filings will be expanded
      to provide sensitivity analysis that we believe is relevant to a reader's
      understanding of this critical accounting policy.


                                                                    Page 2 of 12


Mr. John Cash
U.S. Securities and Exchange Commission
May 13, 2005
Page 3


Item 18 - Financial Statements for the Year Ended September 30, 2004
- --------------------------------------------------------------------

Accounting Policies - Revenue Recognition
- -----------------------------------------

6.    On page 18 of your Annual Report you indicate that tonnage customers are
      usually supplied on the basis of long-term contracts, typically containing
      a fixed facility charge together with a variable charge for product
      supplied in excess of a set minimum. Tell us supplementally and, to the
      extent revenue recognized from these customers is material, disclose in
      future filings your revenue recognition policy related to these long-term
      contracts. Tell us the US GAAP authoritative literature you relied on.

      The company has a number of tonnage customers who are supplied product
      under contracts that are long-term in nature (more than 12 months). These
      arrangements are for the supply of gas products and generally there are no
      other deliverables. The contracts typically contain a fixed and variable
      pricing structure. The fixed fee portion is payable periodically and is
      consideration for the facility usage as well as a specified volume of
      product. Based on the guidance in SAB 101, the company recognises the
      fixed facility usage portion of the payment over the contractual life of
      the arrangement, generally on a straight-line basis. The product portion
      of the fixed fee is recognised as revenue based on actual delivery of
      product at fair value. Any revenue related to the contractual minimum for
      which product has not been delivered is typically recognised at the end of
      the relevant period. The variable charge element of the long-term supply
      arrangement arises when product is delivered in excess of set contractual
      minimums and is typically recognised upon delivery at fair value of the
      volume of product supplied to the customer and when the risks and rewards
      of ownership have passed to the customer.

      Please note that the use of the term `long-term' signifies the period of
      the supply agreement between BOC and its customer, rather than the
      identification of these contracts as long-term construction contracts.

      In future filings the revenue recognition policy will be expanded to
      comment on the accounting for these long-term supply agreements.

      We relied on US GAAP literature SAB 101 (Revenue recognition).



7.    On page 18 of your Annual Report you indicate that product in liquid form
      are delivered into special storage vessels installed at customer premises
      and that the vessels are often owned by the company. Tell us
      supplementally and, to the extent revenue recognized from product
      delivered in liquid form is material, disclose in future filings your
      revenue recognition policy related to these products, including the rental
      of the storage tanks. For US GAAP purposes, refer to EITF 01-8 and EITF
      00-21. Tell us what accounting literature you were relying on before the
      effective dates of EITF 01-8 and 00-21.

      The company supplies some customers with product delivered in liquid form
      with storage vessels located at customer premises, under contracts which
      typically last from one to seven years. If storage vessels are owned by
      the company, the revenue recognition policy is to:

      a) recognise revenue on the liquid product based on the sales volume taken
      by the customer, and



                                                                    Page 3 of 12


Mr. John Cash
U.S. Securities and Exchange Commission
May 13, 2005
Page 4


      b) recognise revenue on the fixed charge for the use of a storage vessel
      on a straight-line basis over the life of the contract. As set out in the
      terms of the contract with the customer, the storage vessel may be
      replaced during the life of the contract to facilitate delivery or to
      increase or decrease the capacity depending on the customer's needs. At
      any time, the company usually maintains a small stock of storage vessels
      of differing sizes to cater for these situations.

      The company's policies for these contracts follow the guidance of EITF
      00-21 (Accounting for revenue arrangements with multiple deliverables).
      The company considers the use of the vessel and supply of product as
      separate elements of the arrangement and records revenue in relation to
      the fair value of each element. Fair value of the product is based on the
      sales price per unit as sold to other customers. The company does not
      supply vessels in isolation to the product supply agreements. Therefore
      the residual value method is used to determine the fair value of the fixed
      charges recognised.

      In consideration of EITF 01-8 (Determining whether an arrangement contains
      a lease) as it relates to the customer's use of the storage vessel, the
      company notes paragraph 10 of the EITF. As fulfilment of the arrangement
      is not dependent on the use of specified storage vessels, the vessels are
      not subject to lease accounting. The vessels are owned by the company and
      while they are `installed' at the customer premises, they are
      interchangeable assets and the company has the right and ability to
      provide vessels that are not specified in the arrangement. Based on these
      facts, the company does not believe that these arrangements fall within
      the scope of EITF 01-8.

      We relied on US GAAP literature SAB 101 (Revenue recognition) in
      conjunction with EITF 00-21 (Revenue arrangements with multiple
      deliverables). Prior to that we relied on FASB Concepts Statement No 5
      (Recognition and measurement in financial statements of business
      enterprises).

      In future filings, the revenue recognition policy will be expanded to
      comment on these arrangements.



8.    Tell us the nature of your long-term contracts that are accounted for
      under the percentage of completion. Confirm supplementally that for US
      GAAP purposes, the nature of such contracts is consistent with those
      covered by SOP 81-1. In addition, for US GAAP purposes, disclose the
      method of measuring progress toward completion and confirm that
      "foreseeable" losses are the same as "anticipated" losses under SOP 81-1.

      In certain parts of the company, principally in the BOC Edwards line of
      business, contracts for the supply of equipment to customers can extend
      over several months. Such contracts usually take the form of the
      installation and / or construction of complex equipment or piping.

      Progress toward completion is measured using appropriate input or output
      measures. In some cases - for example for the installation of piping - an
      input measure is used that compares costs incurred against total estimated
      costs. In other cases, it is more appropriate to measure percentage of
      completion based on an output measure such as the achievement of a
      contract milestone.

      Based on these facts, the company believes that the nature of these
      contracts is consistent with those covered by SOP 81-1.



                                                                    Page 4 of 12


Mr. John Cash
U.S. Securities and Exchange Commission
May 13, 2005
Page 5


      We confirm that the expression 'foreseeable losses' is the same as
      'anticipated losses' under SOP 81-1. This will be included in the glossary
      of terms in future filings.


Accounting Policies - Provisions
- --------------------------------

9.    You indicate that provisions are made when an obligation exists for a
      future liability in respect of a past event and where the obligation can
      be reliably estimated. Confirm supplementally and clarify in future
      filings that this policy is substantially the same as the requirement
      under paragraph 8 of SFAS 5 for US GAAP purpose (i.e. probable that an
      asset has been impaired or a liability has been incurred and that the
      amount of loss can be reasonably estimated).

      Under UK GAAP, a provision is made when a liability is considered
      probable. We confirm that the accounting policy for provisions - i.e.
      'that provisions are made when an obligation exists for a future liability
      in respect of a past event and where the obligation can be reliably
      estimated' is substantially the same as the requirement under paragraph 8
      of SFAS 5 for US GAAP purposes. Accordingly there is no UK to US GAAP
      adjustment in this respect.

      In future filings, we will clarify that the UK and US GAAP policies are
      substantially the same.



Note 8(a) - Pensions and Other Retirement Benefits - UK GAAP Group
- ------------------------------------------------------------------

10.   You indicate that surpluses in the South African plans have been written
      off in the statement of total recognized gains and losses in accordance
      with FRS 17. Disclose the amounts written off in future filings. In
      addition, we do not see mention of this write-off in the discussion of UK
      GAAP and US GAAP differences under pension accounting in Note 30. Tell us
      how these surpluses are accounted for under US GAAP. Provide us the
      specific authoritative literature you relied on.

      Under UK GAAP (FRS17 paragraph 37), a company should recognise an asset to
      the extent that it is able to recover a surplus either through reduced
      contributions or through refunds from the scheme. The South African plans
      were in surplus at September 30, 2004. Local South African regulations
      concerning surpluses, as set out in the Pension Funds Second Amendment Act
      2001, specify that recognition of any surpluses in a retirement fund
      cannot be made by a company unless it is either as a result of a surplus
      apportionment exercise, or if a fund's rules allow it. As a result, the
      surplus was not recognised under UK GAAP and was written off in the
      statement of total recognised gains and losses.

      There is no specific requirement under US GAAP relating to the treatment
      of irrecoverable surpluses. As a result, the associated surplus is
      retained under US GAAP in line with paragraph 35 of SFAS 87.

      The UK to US GAAP adjustment for this item is included in note 30(d)
      (Reconciliation of shareholders' funds) in the line item 'Pensions'. This
      line is the total of all UK to US GAAP pensions adjustments. As the UK
      GAAP write off was made in the statement of total recognised gains and
      losses, and not in the income statement, there is no adjustment to net
      profit between UK and US GAAP for the irrecoverability of surpluses in the
      South African pension plans.



                                                                    Page 5 of 12


Mr. John Cash
U.S. Securities and Exchange Commission
May 13, 2005
Page 6


      The different accounting treatment of the South African plans between UK
      and US GAAP will be referred to in note 30(a) in future filings.



Note 13 - Fixed Assets - Investments
- ------------------------------------

11.   Tell us supplementally and clarify in future filings what is meant by
      "directors' valuation" with regard to the book value of your unlisted
      securities. Address whether this valuation results in a US GAAP
      reconciling item.

      Under UK GAAP, investments are normally carried at cost (less any
      necessary provision) but an alternative treatment allows a company to
      carry investments at market value. Where the investments are carried at
      cost, a company is required to disclose additional information on the
      market value of investments.

      The company does not follow the alternative accounting treatment allowing
      investments to be carried at market value. Therefore the company's use of
      the term 'directors' valuation' means that investments are carried at cost
      (less any necessary provision) or, where they represent an investment in a
      joint venture or associate, at the BOC share of the net assets of that
      joint venture or associate.

      The accounting for unlisted investments therefore does not give rise to a
      difference between UK and US GAAP information.

      In future filings, we will clarify the use of references to 'directors'
      valuation'.



Note 22 - Provisions for Liabilities and Charges
- ------------------------------------------------

12.   We note your disclosures and have the following comments:

      o     We note from elsewhere in the filing that your environmental
            provisions primarily relate to your businesses in the US and that
            the US Environmental Protection Agency has named you as a
            potentially responsible party for clean-up costs. You also indicate
            that based on the information available management believes that it
            is unlikely that any costs incurred will have a material impact on
            the financial position of the Group. Please note that if it is
            reasonably possible that a loss exceeding amounts already recognized
            may have been incurred and the amount of that additional loss would
            be material to a decision to buy or sell your securities, you must
            either (a) disclose the estimated additional loss, or range of loss,
            that is reasonably possible or (b) state that such an estimate
            cannot be made. Refer to SAB Topic 5Y for additional disclosure
            requirements for US GAAP purposes.

      o     We read that your other provisions principally relate to warranty
            and legal obligations. In future filings please provide the warranty
            disclosures required by paragraph 14 of FIN 45 for each period
            presented.

            Your comments are noted and the requested information will be
            provided in future filings.



                                                                    Page 6 of 12


Mr. John Cash
U.S. Securities and Exchange Commission
May 13, 2005
Page 7



Note 25(b) - Financial Commitments - Other Commitments
- ------------------------------------------------------

13.   Please tell us, and revise future filings to briefly explain, what you
      have committed to purchase under take-or-pay contracts. Also tell us,
      based on the contract terms of these take-or-pay contracts, whether they
      meet SFAS 133's definition of a derivative instrument. If so, also provide
      the disclosures required by SFAS 133.

      To ensure future supplies of certain products, the company from time to
      time enters into arrangements which commit it to purchase product from
      available sources. At September 30, 2004 the main commitments which the
      company had entered into were for the purchase of raw materials,
      principally helium where the price of the product is linked to prevailing
      market prices of that product.

      Under US GAAP, paragraph 6 of SFAS 133, these contracts meet the
      definition of a derivative instrument. However, these contracts are not
      subject to the requirements of SFAS 133 as they meet the 'normal purchases
      and normal sales' exemption under paragraph 10(b)(i) of that standard.
      They satisfy the exemption criteria because the company does not have the
      intention, or the record, of net settling these contracts. The contracts
      are also taken out in the functional currency of the company entering into
      the contractual commitment.

      In future filings, additional information will be provided on the nature
      of these commitments.



Note 26(b) - Contingent Liabilities and Legal Proceedings - Legal Proceedings
- -----------------------------------------------------------------------------

14.   We note your reference to insurance as a mitigating factor in the effect
      that these lawsuits could have on your financial statements. In future
      filings, please disclose your accounting policy for recording recoveries
      from insurance. Address any differences between US and UK GAAP.
      Additionally, if you recover settlements for unfavorable verdicts from
      your insurance, please disclose that fact.

      Your comments are noted. An appropriate accounting policy and the other
      disclosures requested will be included in future filings if material.



Note 30 - US Accounting Information
- -----------------------------------

Note 30(a) - Summary of Differences between UK and US Generally Accepted
- ------------------------------------------------------------------------
Accounting Principles and Other US Accounting Information
- ---------------------------------------------------------

Goodwill and Other Intangible Assets
- ------------------------------------

15.   We note that for UK GAAP purposes, negative goodwill is capitalized and
      amortized on a straight-line basis. We also note negative goodwill of
      joint ventures reflected in Note 13 - Fixed Assets - Investments. Clarify
      for us supplementally and revise future filing to indicate why no US GAAP
      reconciling information is required for this apparent difference in GAAP.
      Refer to paragraphs 44 and 45 of SFAS 141.

      The negative goodwill in joint ventures for UK GAAP purposes arose on a
      transaction which took effect in September 2004.



                                                                    Page 7 of 12


Mr. John Cash
U.S. Securities and Exchange Commission
May 13, 2005
Page 8


      For US GAAP purposes, the excess of the amounts assigned to the assets
      acquired and liabilities assumed was adjusted against the values of the
      acquired long-lived assets in accordance with SFAS 141 paragraph 44. There
      was no excess remaining to be dealt with in accordance with SFAS 141
      paragraph 45. As a result, there was no difference between the
      shareholders' funds under UK GAAP and under US GAAP, although there is a
      difference in the classification between tangible and intangible assets.

      Appropriate comment will be added in future filings to explain this
      situation.



Financial Instruments
- ---------------------

16.   We note your disclosures concerning financial instruments here and in Note
      21. Please revise future filings to clarify if all your hedges seen in
      Note 21 qualify for hedge accounting under US GAAP.

      Your comments are noted. Disclosure will be made in future filings to
      clarify the hedge accounting position under US GAAP.



Note 30(c) - Reconciliation of Net Profit
- -----------------------------------------

17.   We note that in Note 28(c) - Acquisitions and Disposals - Exchange of
      Business, your determination of the unrealized profit on disposal of a
      subsidiary took into consideration negative goodwill credited on disposal
      of a subsidiary. We also note the (pound)8.2 million unrealized profit
      that was reflected in the statement of total recognized gains and losses
      for UK GAAP purposes and net income for US GAAP purposes. Given the
      difference in accounting for negative goodwill under UK and US GAAP, help
      us to understand the appropriateness of the gain recognized for US GAAP
      purposes.

      In the fiscal year ended September 30, 2003 the company combined its
      Japanese gases business with part of Air Liquide Japan to form Japan Air
      Gases Limited. Under UK GAAP, the transaction was accounted for in
      accordance with UITF 31 (Exchange of businesses or other non-monetary
      assets for an interest in a subsidiary, joint venture or associate). The
      profit on the transaction was regarded as unrealised and was shown in the
      statement of total recognised gains and losses rather than in the income
      statement in accordance with UITF 31.

      The transaction was deemed to be a transfer of assets at fair value (under
      APB 29) and is recorded in the reconciliation of net profit in two
      adjustments to reflect the difference between UK and US GAAP. The initial
      adjustment of (pound)8.2 million is recorded to reclassify the UK GAAP
      unrealised gain from the UK statement of total recognised gains and losses
      to the US income statement. This (pound)8.2 million credit is offset by a
      debit adjustment of (pound)20.7 million resulting in a total US GAAP
      adjustment of (pound)12.5 million. The (pound)20.7 million is explained
      further in the response to comment 18 below.



                                                                    Page 8 of 12


Mr. John Cash
U.S. Securities and Exchange Commission
May 13, 2005
Page 9


18.   Please revise future filings to more clearly explain any reconciling items
      related to the disposal of your businesses. Specifically, tell us
      supplementally and revise future filings to clarify why you show a
      ((pound)20.7) million reconciling item related to the disposal of a
      subsidiary in 2003 and a (pound)39.9 million reconciling item related to
      the disposal of the US packaged gas business in 2004.

      a) Disposal of subsidiary in 2003

      The adjustment of (pound)(20.7) million, also noted in the response to
      comment 17 above, relates to the accounting for the combination of the
      company's Japanese gases business with part of Air Liquide Japan in the
      fiscal year ended September 30, 2003. It is made up of two elements:
      (pound)11.7 million related to the difference in the net book value of
      tangible assets, and (pound)9.0 million related to the difference in the
      net book value of intangible assets recognised in the company's Japanese
      business.

      In the fiscal year ended September 30, 2002 an impairment of (pound)21.2
      million had been recognised in the income statement for UK GAAP purposes
      to write-down the value of the company's gases business in Japan to an
      appropriate amount based on valuations performed ahead of the merger with
      part of Air Liquide Japan. This impairment was not recorded for US GAAP
      purposes as the US GAAP basis used to determine the carrying amount of the
      assets was historically lower than the UK GAAP basis. This resulted in a
      difference of (pound)11.7 million in the basis of the assets sold -
      representing 55% (the percentage of the business disposed of) of
      (pound)21.2 million.

      Additionally, for US GAAP purposes, the company historically had
      (pound)9.0 million of goodwill in excess of that recorded under UK GAAP.

      Therefore, the calculation of profit / loss on disposal in the fiscal year
      ended September 30, 2003 under UK GAAP was based on a (pound)20.7 million
      lower carrying value of net assets than under US GAAP.



      b) Disposal of the US packaged gas business in 2004

      The adjustment of (pound)39.9 million relates to the disposal of the US
      packaged gas business in the fiscal year ended September 30, 2004. These
      assets represent a portion of the US Industrial and Special Products (US
      ISP) reporting unit within the ISP operating segment. In accordance with
      EITF 98-3, the assets sold are not considered a business for US GAAP
      reporting purposes as the required inputs, processes and outputs were not
      present in the assets that were sold. We have also determined that these
      assets do not constitute a 'component of an entity' under SFAS 144,
      paragraph 41.

      Under UK GAAP, certain assets which were associated with the assets that
      were disposed of, but were retained in the business, were considered to be
      impaired. Under US GAAP these assets did not fail the first step of the
      impairment test under SFAS 144 and no impairment loss was recognised. This
      impairment amounted to (pound)13.4 million under UK GAAP and was included
      within the loss on disposal but was reversed for US GAAP reporting.

      Under UK GAAP, goodwill of (pound)19.9 million was allocated to the
      disposed assets. Under US GAAP no such allocation was made as the assets
      disposed of did not constitute a business.



                                                                    Page 9 of 12


Mr. John Cash
U.S. Securities and Exchange Commission
May 13, 2005
Page 10


      The remaining difference of (pound)6.6 million relates to provisions made
      for restructuring following disposal of the US packaged gas business. In
      applying SFAS 146 to these items, (pound)6.6 million of these provisions
      required reversal as a US GAAP reconciling item.

      In future filings, the disclosure explaining these adjustments will be
      expanded.



Note 30(g) - Stock-Based Compensation
- -------------------------------------

19.   We read your discussion of employee share schemes here and in Note 7(a).
      If stock or stock options have been granted to these schemes at a
      discount, please revise future filings to disclose the discount for each
      year for which you present financial statements. Address for us
      supplementally whether such discount would require compensation
      recognition under US GAAP. Refer to SFAS 123.

      For US GAAP reporting purposes, the company accounts for its share option
      plans using APB Opinion 25. The discounted plans are deemed
      non-compensatory under APB 25 paragraph 7 as there have been no options
      granted with a discount from market of more than 15%. The company also
      provides the disclosures required by SFAS 123.

      Future filings will be revised to disclose any discount on share schemes.
      The impact of the discount is included in the SFAS 123 disclosures given
      in note 30(g).



Note 30(i) - Recently Issued Accounting Pronouncements not yet Implemented
- --------------------------------------------------------------------------

20.   Please revise future filings to provide all disclosures required by SAB
      Topic 11M.

      Your comments are noted. Wording in future filings will be revised to
      ensure compliance with SAB Topic 11M.


                                                                   Page 10 of 12


Mr. John Cash
U.S. Securities and Exchange Commission
May 13, 2005
Page 11



Pursuant to the Staff's request, we acknowledge that we are responsible for the
adequacy and accuracy of the disclosure in our filings with the Commission. We
acknowledge that staff comments or changes to disclosure in response to Staff
comments do not foreclose the Commission from taking any action with respect to
our filings and that we may not assert this action as a defense in any
proceeding initiated by the Commission or any person under the federal
securities laws of the United States.

         Please do not hesitate to call us with respect to this response on +44
1276 477222 or Peter Harvey of PricewaterhouseCoopers LLP on +44 20 7213 8960 or
Ward McKimm of Shearman & Sterling LLP on +44 20 7655 5991. Many thanks.



Yours sincerely,

THE BOC GROUP PLC



/s/       Rene Medori
- ---------------------------------
R Medori
Group finance director

cc:      U.S. Securities and Exchange Commission
            Ms. Jennifer Thompson
            Ms. Jeanne Baker



                                                                   Page 11 of 12








                                    SIGNATURE



Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant, The BOC Group plc, has duly caused this letter to be signed on its
behalf by the undersigned, thereunto duly authorized.




Date:  May 13, 2005



                                     By:    /s/       Sarah Larkins
                                           -------------------------------------
                                           Name:   Sarah Larkins
                                           Title:  Assistant Company Secretary





                                                                   Page 12 of 12