Thermometrical Obfervations. 



MADE AT FORT WASHINGTON, 



Commencing yune 1790, and e?iding April 1791. 

 By Daniel Britt and G. Turner. 



TO WHICH ARE ADDED, FOR SOME TIME, 



I'be Rife and Fall of the Ohio, 



Communicated by G. Turner. 



Read July 14th 1797, at a Special Meeting. 



A X 



