Exhibit 28 (e)

PROMISSORY NOTE                                                    Dated  4-8-94
$ 100,000.00                                                        Reno, Nevada



     The  undersigned  corporation,  SUMMA METALS,  INC., a Nevada  corporation,
hereinafter  referred  to as  'Maker",  promises  to pay to the order of AMYN S.
DAHYA, an individual, and/or assigns ("Holder"), the sum of One Hundred Thousand
Dollars ($100,000.00), payable as follows:

     The entire  balance,  plus  accrued  interest at the rate of 12% per annum,
commencing  on the date  hereof,  shall be due and payable in full one year from
the date hereof.

     Maker  reserves the right to prepay all or any portion of the  indebtedness
evidenced by this Note at any time, without penalty.

     The Holder  shall not by any act of  omission  or  commission  be deemed to
waive any rights or remedies  hereunder  unless such waiver be in writing signed
by the Holder, and then only to the extent set forth therein.

     Maker agrees to pay all costs and expenses included in enforcing collection
of any  portion  of  this  Note by suit or  otherwise,  including  a  reasonable
attorney's fee, if an attorney is used in such collection, regardless of whether
a suit is instituted for collection. If a suit is instituted for collection, the
Court shall adjudge the attorney's fee allowed. If a suit is not instituted, but
an attorney is retained, maker shall pay the actual attorney's fee incurred.

     Presentment,  notice of dishonor  and  protest are hereby  waived by maker.
This Note shall be the  uncontestable  obligation of Maker. Such liability shall
continue in the event any extension of time for repayment is given.

     Maker hereby expressly represents and warrants that, until the total amount
of principal  and interest  due and payable  hereunder  has been paid to Holder,
Maker will not in any way encumber any of its assets,  which consist of valuable
mineral  properties,  together with any other assets which it may acquire at any
time during the term hereof,

     The Holder of this Note may  accelerate  this Note,  that is,  declare  the
entire unpaid balance due and payable, upon (1) failure of Maker to stay current
with its State  corporation  and  regulatory  filings  and/or  state and federal
securities  laws,  rules and  regulations;  (2) any attempt to  encumber  any of
Maker's assets during the term of this Note: and (3) the insolvency of maker, or
any guarantor, if any, of this Note. Protest is waived.

     Upon any  default  hereunder,  the  undersigned  agrees to pay all costs of
collection and attorney's fees incurred by Holder in collecting this Note, or in
exercising any judicial or nonjudicial remedies available to Holder.

     In the event  litigation is necessary to collect this Note, Maker expressly
consents to jurisdiction in Washoe county,  Nevada, which shall be the exclusive
venue for such litigation,

    This Note shall be guaranteed by Michael M. Chaffee, who Shall, at all times
during the term of this Note,  be and remain an officer,  director and principal
shareholder of Maker.

SUMMA METALS, INC., a Nevada corporation ("Maker")

By

/s/ Michael M. Chaffee
    -----------------------------
    Michael M. Chaffee, President

    For   valuable   personal   consideration,   receipt   of  which  is  hereby
acknowledged,  and as further  inducement for Holder to make the loan hereunder,
the  undersigned  expressly and  unequivocally  guarantees  all payments due and
payable  hereunder  and  expressly  accepts  all  terms and  conditions  of this
Promissory Note as his personal obligation.

/s/ Michael M. Chaffee
    ---------------------------------
    Michael M. Chaffee, an individual




Summa Metals, Inc.
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28281 CROWN VALLEY PKWY SUITE #225, LAGUNA NIGUEL, CA 92677-1461
TEL: (714) 348-0749  FAX: (719) 368-9747

                                             15 October, 1997

Mr. Amyn Dahya
1335 Greg Street,
Sparks, NV, 89431

Dear Amyn,

This is to confirm our  conversation  of this date RE: the extension of our past
due note in the amount of $100,000.

You have given your agreement to extend said note, to be due and payable without
penalty, to September 30th, 1998.

In the event the  Company is in a position  to make  partial  payments,  without
compromise to its operations prior to that date, we will make every effort to do
so.

The Company  appreciates your understanding that it must use the majority of the
proceeds from its IPO to continue and expand  operations  for the benefit of all
its Shareholders.

We will  continue to keep you informed on the  progress of the  Company.  Please
initial  below,  return via Fax, and I will forward under  separate  cover,  the
revised note.

Sincerely,

THE SUMMA METALS CORPORATION

/s/ Raymond C. Baptista
    -----------------------------------
    Raymond C. Baptista
    Vice President, Chief Financial Officer
                                               Amyn Dahya  /s/ Amyn Dahya
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          ARIZONA * NEVADA * CALIFORNIA * CHIHUAHUA * BAJA CALIFORNIA