P R E F A C E.y vii 



Icfs thofe which have barely been read before them. If 

 ever their tcftimony has been cited by any author in h- 

 vour of his books, reafonings, or machines, they hereby 

 declare, that this liberty has been ufed entirely without 

 their confent or knowledge, and proceeded alone from the 

 fond opinion which the writer had entertained of his 

 own performance. 



Whoever will favour the fociety with any difcourfp 

 which it comprehends in its plan, may fend their pa* 

 pers to their fecretaryDr Alexander Monro Pro-^ 

 feflbr of Phyfic and of Anatomy ajt Edinburgh. 



:£.diuburgh, 1771. 



