THERMOMETRICAL OBSERVATIONS. 209 



Obfervations made with the fix-feet Zenith Sector on 

 Union Hill near the Miffiffippi river, for determining 

 the firft point in the boundary between the United 

 States, and His Catholic Majefty's provinces of Eaft 

 and Weft Floridas. 



Face of the Sedlor Weft. 



Refuk 



