THERMOMETRICAL OBSERVATIONS. 165 



Dec. 27th. Clear day. Thermometer 3° at flm rife, 

 rofe to ^y in the afternoon. 



O's preceding limb on die meridian at 12'' o' 33'' 



Suhfequent do. at . . . . .12257 



Centre at 



45 



28th. • Clear day. Thermometer 8" at fun rife, 

 rofe in the afternoon to ^2°' 



Equal alilludi's of the Suit. 

 A. M. 9" 40' 2". P. M. 2" 24' 56". 



Emcrfion of the I ft fatellite of U obferved at S'' 4S' 38" 

 P. M. If- very low, the atmofphere hazy, aiid the belts 

 fcarcely difcemible. Magnifying power of the telefcopc 

 120. 



29th. Clear a fhort time about noon. Thermo- 

 meter 1 7° at fun rife, rofe in tiie afternoon to 



45 •. 

 30th. Cloudy with light fnow during the day. — 



Clear in the evening. Thermometer 32° in 

 the morning, rofe to 2,3° ""^ the afternoon. 

 31ft. Cloudy in the evening and night. Ther- 

 mometer 21° at fun rife, rofe in the afternoon 

 to 45°. ■ ■ 



Equal altitudes of the Sun . 

 A.M. 9" 53' 7". P.M. 2", 16' 25". 



Obferved zenith diftance of « Lyra: . i" 37' 23' n. 



1 797. Clear and calm in the morning, flying 



Jan. ifl;. clouds in the afternoon. — From 10'' A. M. 



till noon, three fine luminous circles appeared 



in the atmofphere, fimilar to thofe defcribed 



Vol. V. Z by 



