3° 



HIS TORT of the SOCIETT. 



1788. 



Dec. I 



At the fame Meeting, Sir James Hall read a paper on the 

 pJ^ceftonc."" Formation of Pumice Stone. 



MrUdit en Mr Playfair read a paper by Mr John Leslie, on the 



wrtliMTth?' Solution of certain indeterminate Problems in Mathematics. 

 problems. rpj^j^ p^p^^. jg pointed in this volume. [No. XIV. Phyf. CI.'] 



Dec. 15. 

 Dr Hill on fyn. 

 words. 



Lit. CI. Dr John Hill read a continuation of his Eflay on 

 Synonymous "Words. {Stt fttpra, Feb. 18. 1788.] 



APPEN- 



