322 ASTRONOMICAL and 



Obfervations on a Lunar Eclipfe. 



At 1"!^ lo' the D 's limb entered the penumbra, but 

 was not indented till 17'' 11' 34". — The earth's iha- 

 dow was not well defined, and the atmofphere fmoky. — 

 The ]) was obfcured by cloudj at 17" 25'. — Magnifying 

 power of the telefcope about 60. 



2 Jth. Eqtia! altitudes of the Sun. 



A. M. 9'' 34' 39". p. M. 2" 27' 19". 



2oth. Equal altitudes of the Sun. 



A. M. 9I' 18' 42". P. M. 2" 44' 55". 



30th. Equal altitudes of the Sun. 



A. M. 9" 17' 11". P. M. 2" 44' 18". 



The fmall zenith fedor arrived, which we 

 agreed to uie for the determination of this 

 point in the Une. — The large one having been 

 fent by water by the way of New-Orleans, 

 and we were uncertain when it would come 

 to hand. 



Thermometer 84°, 

 Dec. I ft. Polifhed the refledlors of the eye-piece, of 

 the telefcope of the fmall zenith fed:or, and 

 fet it up 



With the face to the Weft. 



Cloudy. — Thermometer 60° at fun rife, 

 rofe to 83°. 

 2d. Cloudy. — Thermometer 64" at fun rife^ 

 rofe to 84°. 



7^ Equal altitudes of the Sun. 



h ' " b r " 



A.M. 9 34 8.5. P. M. 2 31 45.5. 



Thermo- 



