EXHIBIT 99

                                  PRESS RELEASE



                                ACNB CORPORATION

                                  PRESS RELEASE


                              FARMERS BANCORP, INC.
                                       and
                        FARMERS NATIONAL BANK OF NEWVILLE
                                to affiliate with
                                ACNB CORPORATION


Contact Person: Ronald L. Hankey,  President and Chief Executive Officer,
                (717) 338-2268

Date: July 28, 1998

     The Boards of Directors of ACNB Corporation and Farmers  National  Bancorp,
Inc.  announced  today that they have  reached a  definitive  agreement  whereby
Farmers National Bancorp and its wholly-owned subsidiary,  Farmers National Bank
of Newville,  will affiliate with ACNB Corporation.  The agreement,  signed July
28,  provides for Farmers  National Bank to become a wholly-owned  subsidiary of
ACNB  Corporation.  ACNB  Corporation  is a $484 million  bank  holding  company
headquartered in Gettysburg,  Pennsylvania, with 14 community banking offices in
York and Adams counties. Farmers National Bancorp is approximately a $40 million
company headquartered in Newville, Pennsylvania.

     Under the terms of the Agreement,  shareholders of Farmers National Bancorp
will receive 2.266 shares of ACNB Corporation  common stock, par value $2.50 per
share, for each share of Farmers National Bancorp,  Inc. common stock, par value
$0.50  per  share,   previously  owned.  The  aggregate   transaction  value  is
approximately $16,000,000.

     In announcing  the proposed  transaction,  Ronald L. Hankey,  President and
Chief Executive Officer of ACNB  Corporation,  said, "This alliance with Farmers
National Bank represents an excellent  business  opportunity that will result in
benefit to our  shareholders,  as well as to the  communities  and the customers
served by both institutions.  This affiliation  furthers our long-term strategic
plan of providing  community-based  financial services to a larger  geographical
area."

     Edgar S. Heberlig,  Chairman of the Board of Directors of Farmers  National
Bancorp,  stated, "We are pleased to affiliate with ACNB Corporation,  a company
with a long-standing tradition of service to its customers and the community and
sound financial performance.  ACNB Corporation has a business philosophy that is
compatible with ours. We believe that this  transaction is in the best interests
of our  shareholders,  our employees,  our customers and our community.  It will
permit us to continue and enhance the quality banking services and products that
we provide to our  customers  and the  community we serve.  We believe this is a
win-win situation for all parties."

     Subject  to  the  receipt  of  all  required   regulatory  and  shareholder
approvals,  the parties  anticipate  consummating the transaction by late fourth
quarter of 1998.