INDEMNIFICATION AGREEMENT

     THIS AGREEMENT made this 29th day of July, 1997, by and between MARK T. 
THATCHER and CHRISTOPHER O. WERNER (hereinafter collectively referred to as 
"Thatcher and Werner" and/or the "Indemnifying Party"), whose address is 360 
Thames Street, First Floor, Newport, Rhode Island, 02840, and the ESTATE OF 
THOMAS N. HACKETT (hereinafter referred to as the "Estate" and/or the 
"Indemnified Party"), whose administrative address is C/O Bryan M. Dench, 
Esq., Skelton, Taintor & Abbott, 95 Main Street, Auburn, Maine 04212-3200;


WITNESSETH


     Upon execution of the Closing documents and Exhibits attached hereto, the 
transaction will be completed whereby the sale of One Hundred Fifty-Six 
Thousand (156,000) shares of Acadia National Health Systems, Inc. (hereinafter 
referred to as "Acadia") common stock and Seventy-three (73) shares of PRI, 
Inc. (hereinafter referred to as "PRI") common stock is being purchased from 
the Estate by several affiliates of the Company (including present officers 
and directors.)  The transaction is hereby consummated with the execution of 
all documents set forth herein and attached hereto as Exhibits, and involves 
the estate's beneficial ownership of shares of Acadia and PRI's common stock.  
The sale is hereby made pursuant to Section 4(2) of the Securities Act of 1933 
(the "Act") involving the sale of securities not to be made in any public 
offering.

     The Estate acknowledges that, prior to consummation of all transactions 
represented by these closing documents, it was the majority shareholder of 
Acadia National Health Systems, Inc. ("Acadia and/or the "Company").  The 
Estate also acknowledges that it had no interest in continuing to control the 
Board of Directors of the Company nor to retain the majority ownership of the 
Company.  

     Thatcher and Werner acknowledge hereby that they will accept appointment 
to the Board of Directors of Acadia and will also accept appointment by the 
Interim Board to be officers of the Company.  This appointment will 
automatically assign "affiliate" status to both Thatcher and Werner and will 
restrict all common equity holdings they have in the Company, pursuant to Rule 
144 of the Act and Section 13 or 15(d) of the Securities Exchange Act of 1934 
(the "Exchange Act").   



     In order to provide further assurances to the Estate, and as part of the 
negotiated sale of the Estate's controlling interest, Thatcher and Werner have 
agreed to hold harmless and indemnify the Estate against any liability which 
may arise out of the continued operation, development and expansion of Acadia.

     NOW THEREFORE, IT IS AGREED AS FOLLOWS:

1.  Indemnification:  In consideration of the Estate appointing Thatcher and 
Werner to serve as members of the Board of Directors of Acadia, and to induce 
the consummation of the purchase and sale of the Estate's controlling interest 
in Acadia to present officers of the Company, Thatcher and Werner hereby agree 
to indemnify and hold harmless the Estate against any and all liability, 
claims or causes of action whatsoever arising out of the continued operation, 
development and expansion of Acadia, including reasonable attorneys fees and 
costs incurred in defending any such claims or causes of action; provided, 
however, that this indemnification shall not apply to any intentional acts 
committed by the Estate, which are deemed by a court of law to have been 
fraudulent or in breach of its fiduciary duty to Thatcher and Werner or the 
officers and directors of the Company.

2.  Insurance:  Thatcher and Werner will insure the Estate by purchasing an 
indemnity policy of insurance or bond which may be in the form of specific 
directors and officers insurance ("D&O").  All policies shall be listed in 
Schedule A attached hereto, and the policies and any proceeds received 
thereunder shall be made payable to the Estate for the purposes of this 
Agreement.

Thatcher and Werner shall have the right to take out insurance on the life of 
any Shareholder whenever, in the opinion of either party, additional insurance 
may be required to carry out the obligations under this Agreement.  

Thatcher and Werner shall ensure payment of all premiums on insurance policies 
taken out pursuant to this Agreement and shall give proof of payment to the 
Estate within fifteen (15) days after a written request by the Estate or its 
representative.



3.     Warranties/Representations:     

(i)     The Indemnifying Party hereby jointly and severally agrees to 
indemnify the Estate and defend and hold it harmless from and against all 
claims, damages, losses, costs, and expenses (including reasonable attorney 
fees, court costs and other expenses incident to any proceeding, investigation 
or any claim, including without limitation in any suit by the Estate against 
the Indemnifying Party) attributable directly or indirectly to the breach by 
the Indemnifying Party of any obligation hereunder or the inaccuracy of any 
representation or warranty made by the Indemnifying Party herein or in any 
instrument delivered pursuant hereto or in connection with the transactions 
contemplated hereby, including, but not limited to, the Schedule.  

(ii)     A claim for indemnification shall be made only by the Estate 
notifying the Indemnifying Party of the existence of the claim for which 
indemnification is sought.  The Estate shall thereafter be entitled, at its 
option, to control, or participate in, any prosecution or defense relating to 
such claim for indemnity (including without limitation decisions to settle or 
appeal) through attorneys and agents of its choosing, all at the expense of 
the Indemnifying Party (except in any suit by the Indemnifying Party against 
the Estate).  The results of any such prosecution or defense shall be binding 
upon the Indemnifying Party and the Estate for purposes of resolving any claim 
for indemnity. 

(iii)Notwithstanding the foregoing, no new notice of claim for indemnity may 
be given by the Estate after July 1, 2002; any claims for indemnity thereafter 
are barred.  Any claims for indemnity, or portions thereof, in excess of the 
aggregate amount of proceeds received from the indemnity policy due to the 
Indemnifying Party and the Estate shall be the joint and several 
responsibility of the Indemnifying Party and paid to the Estate on demand.  
The Indemnifying Party shall not be entitled to indemnity or contribution 
from, or subrogation to or recovery against the Estate with respect to any 
liability of the Indemnifying Party which may arise under this Agreement of 
the transactions contemplated hereby.



4.     This Agreement shall bind upon and inure to the benefit of the heirs, 
successors and assigns of the parties hereto.


     IN WITNESS WHEREOF, the parties have signed this Agreement this 29th day 
of July, 1997.


                              INDEMNIFYING PARTY



                              By:______________________                         
                                 MARK T. THATCHER


                              By:______________________                        
                                 CHRISTOPHER O. WERNER



                              INDEMNIFIED PARTY
                              (ESTATE OF THOMAS N. HACKETT)



                              By:______________________                         
                                 BRYAN M. DENCH,
                                 Trustee


                              By:______________________                         
                                 EARL B. AUSTIN,
                                 Trustee


                              By:______________________                        
                                 ELAINE H. HACKETT,
                                 Personal Representative