74 



Solar Eclipse. — Baromelric 01 ser vat ions. 



SOLAR ECLIPSE. 



During the eclipse on the 7th of September, M. Necker of 

 Cologny, near Geneva, had two dehcate thermometers suspended 

 about four feet from the ground ; one of them exposed to the 

 direct rays of the sun, the other near the first, but in the shade, 

 on the north side of a tree. The following are some of the re- 

 sults : 



Maximum in the sun 97*25 — minimum 69" 12. 



. in the shade 7025, min. 65* IS. 



Difference of the maxima 27°. 

 ■ of the minima 4°. 



BAROMETRIC OBSERVATIONS. 



Leighton, January 13, 1821. 

 Dear sir, — I send you the observations made at this place 

 on Monday the 8th instant. 



8'^ 

 9 



10 



11 



12 



Bar. 



28-942 

 28-944 

 28-943 

 28-943 



28-927 



Wind. 



s.w. 



E. 



I have also received the observations of Col. Bcaufoy, as un- 



der; 



1 have also been favoured by Col. B. with the result of his 

 calculations on the difference of altitude of our instruments. I 

 think it may be adviseablc to make a few more observations on 



the 



