EXHIBIT 99.1

                                  PRESS RELEASE

NBT Bancorp Inc.                    Lake Ariel Bancorp, Inc.
52 South Broad Street               409 Lackawanna Avenue, Suite 201
Norwich, NY  13815                  Scranton, PA  18503
Daryl R. Forsythe                   John G. Martines
607-337-6416                        570-341-8417

ATTENTION:  FINANCIAL/BUSINESS EDITORS

         NORWICH,  NY, and  SCRANTON,  PA,  August 16, 1999--NBT Bancorp Inc.
(NASDAQ:  NBTB),  the parent company of NBT Bank,  N.A., and Lake Ariel Bancorp,
Inc. (NASDAQ:  LABN), the parent company of LA Bank, N.A.,  announced today that
they have entered into a definitive  agreement of merger.  The merger is subject
to the approval of each company's shareholders and of banking regulators.

         The  merger is  expected  to close in the first  quarter of 2000 and is
intended  to be  accounted  for as a  pooling-of-interests  and to  qualify as a
tax-free  exchange for Lake Ariel  shareholders.  The  transaction  is valued at
$92.8  million or $18.50  per share for the  outstanding  common  shares of Lake
Ariel  Bancorp,  Inc.  (Lake Ariel).  Shareholders  of Lake Ariel will receive a
minimum of 0.8315  shares and a maximum of 0.9487 shares of NBT common stock for
each share  exchanged.  Based on the  August 13 closing  price of $20.25 for NBT
Bancorp Inc. (NBT) common stock, NBT will issue approximately 4.6 million shares
and share  equivalents  in exchange  for all of the Lake Ariel  common stock and
share equivalents outstanding.  Lake Ariel has provided NBT an option to acquire
up to 965,300 shares of Lake Ariel's  common stock  (equivalent to 19.9% of Lake
Ariel's common stock currently outstanding)  exercisable in the event of certain
circumstances  involving transactions with third parties, acts of third parties,
or break-up of the merger agreement.

         Lake Ariel will be merged into NBT,  with LA Bank,  N.A.  becoming  the
second  banking  subsidiary of NBT. NBT President  and CEO,  Daryl R.  Forsythe,
states,  "We are extremely pleased to move into Pennsylvania  through the merger
of this strong  growing  bank.  LA Bank has become a bank known in  Northeastern
Pennsylvania  for its  community  service,  much as NBT is known in its New York
market areas.  LA Bank has  aggressively  grown its franchise over the past five
years,  and our  combined  strength of capital  and  management  will  encourage
continued  growth.  We expect the transaction to be accretive to earnings in the
first full year of combination."

         John G.  Martines,  CEO of Lake Ariel and President and CEO of LA Bank,
adds,  "This is an  exciting  opportunity  for us. It allows LA Bank to keep its
identity and remain the leading locally run bank in its markets. We will be able
to offer our customers expanded lending  capabilities,  trust services,  venture
capital, and other products,  which should aid in future






growth. NBT is a strong performing, well managed company, and we look forward to
sharing their resources."

         NBT Bank,  N.A., the wholly owned  subsidiary of NBT, is a full service
commercial bank with total assets of over $1.3 billion. The Bank has 36 branches
in nine  counties in central  New York.  NBT and NBT Bank are  headquartered  in
Norwich,  NY,  where the Bank was formed in 1856.  NBT has  approximately  3,700
shareholders and 12.5 million common shares outstanding.

         Lake Ariel's wholly owned subsidiary,  LA Bank, N.A., has approximately
$500 million in assets.  The Bank has 22 branch offices serving five counties in
Northeastern   Pennsylvania.   The  Company  is  headquartered  in  Lake  Ariel,
Pennsylvania, has approximately 1,400 shareholders and 4.9 million common shares
outstanding.  The Company's financial center, including executive offices, is in
Scranton, Pennsylvania.

         The combined  company,  NBT Bancorp Inc.,  with proforma assets of $1.8
billion  and 58  branch  banks,  will be headed  by  President  and CEO Daryl R.
Forsythe,  who holds these titles for NBT Bank, N.A. John Martines will continue
as the President and CEO of LA Bank, N.A. and will head the Pennsylvania efforts
of NBT.

         Concurrent  with this  announcement,  NBT Bancorp  Inc. has reduced its
stock  repurchase plan from 600,000 shares to 200,000 which leaves 76,500 shares
remaining for repurchase under the reduced plan.

Forward-Looking Information

         This  news  release   contains   statements   regarding  the  projected
performance of NBT and Lake Ariel on a stand-alone and proforma  combined basis.
These statements  constitute  forward-looking  information within the meaning of
the Private Securities  Litigation Reform Act of 1995. Actual results may differ
materially from the projections discussed in this release since such projections
involve  significant  risks and  uncertainties.  Factors  that might  cause such
differences  include, but are not limited to: the timing of closing the proposed
merger  being  delayed;   competitive  pressures  among  financial  institutions
increasing significantly;  economic conditions,  either nationally or locally in
areas in which NBT and Lake Ariel conduct their operations, being less favorable
than  expected;  the  cost and  effort  required  to  integrate  aspects  of the
operations of the companies  being more difficult  than expected;  expected cost
savings from the proposed merger not being fully realized or realized within the
expected time frame;  legislation or regulatory  changes which adversely  affect
the ability of the combined company to conduct its current or future operations;
and the impact of the transition to the year 2000 on the operations of NBT, Lake
Ariel,  or the combined  company.  NBT and Lake Ariel disclaim any obligation to
update any such factors or to publicly  announce the result of any  revisions to
any of the  forward-looking  statements included herein to reflect future events
or developments.

                             ****END OF RELEASE****