the Solar Eclipse of July 1833. ^17 



the indications of an excellent Leslie's Photometer, prepared by 

 Lindsay, were noted at apparent intervals of five minutes. The 

 corrected times with the corresponding indications of the pho- 

 tometer are given in the following table. 



The times of the commencement, middle, and end of the 

 eclipse are put down from Mr Innes's determination given in a 

 former number of this Journal. 



The remarkable steadiness of the clouds in the eastern hemi- 

 sphere, to which alone the photometer was exposed, favoured 

 very much the experiments. 



As the sun rose behind the mass of clouds, his rays, traver- 

 sing a thinner atmosphere, acquired a greater illuminating power'; 



