30 Rev. B. Powell on the Solar Eclipse, Nov. 29th, 1826. 

 A.M. IP 40"". Eclipse diminished. 



(III). 



11 1" 50™. Eclipse very small. 

 (IV.) 



12'' 5". After eclipse ended. 

 (V.) 



The results of these different observations exhibit some dis- 

 crepancy, which may probably be attributed to the varying 

 influence of wind, occasional haziness, &c. ; but if those ob- 

 tained during the eclipse be compared with those when there 

 was none, I conceive no such difference will appear as can be 

 supposed connected with the circumstance of the eclipse. 



From these results we may infer, that during the present 

 eclipse, (viz. one of about 6\ digits,) the rays underwent no 

 such modification as was sufficient to produce a perceptible 

 difference in the ratio of the effects on a red and a black ther- 

 mometer. 



From Mr. Wiseman's statement respecting the alteration 

 which took place in the spectrum, I conceive it will be de- 

 sirable to verify by the more pei-fect methods now known, of 

 insulating homogeneous rays, whether in such an eclipse any 

 given ray is either entirely wanting, or very much weakened. 



So 



