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XXXVI. 
OBSERVATIONS OF THE ECLIPSE OF THE SUN OF SEPT. 17, 
asia, MADE AT BOWDOIN COLLEGE, BRUNSWICK. 
BY PROFESSOR CLEAVELAND. 
Communicated in a letter to Nathaniel Bowditch. 
—tt | DD, 
THE chronometer, which I employed, was the College clock. 
By a sufficient number of observations of equal altitudes of the sun, I 
ascertained its daily loss to be 6”*9, and, on the noon of the 17th, the 
- clock was 2’ 14”-2 slow of mean time. 
The observations were made within a few feet of Massachusetts 
Hall, one of the College buildings. On the morning of Tuesday the 
atmosphere was somewhat loaded with smoke; but, when the sun 
came to.the meridian, it was sufficiently clear. A little inconvenience 
arose from the wind, which was blowing considerably. On the 
whole however the observations were satisfactory ; particularly of the 
termination of the eclipse, on which I always place more reliance, 
than on those of the beginning. . 
~ ‘The Rev. Dr. Appleton very kindly assisted me in all the obser- 
vations. He observed with a Gregorian reflector, whose magnifying 
power is about 120. 
I employed the refracting telescope, belonging to an Equatorial. 
Its magnifying power is less than that of the Reflector abovemention- 
ed; but it exhibits the sun’s limb exceedingly well defined. Our 
observations with the two telescopes did not differ 1” from each other. 
The following is the result. es 
; Reining Of the cclipar:; = <ii+.ve 29 82, SRRmcan Gime 
End ofthe eclipse - - = 3 55 20°2 
Datation wine eck erie ee 
