1^4 ^^^'' Pigott's Obfervatrons 



Hours. 



1^84, Sept. 30. at 18 "j 



061. 15. at 14 i Similar Obfervations to .that of 178^^ 

 0£l. 22. at 19 /- July 27th, at 10 h, rt, ^ Antinoi being 



As this approaches the mofl to the preceding refult, It may be 

 aiTumed as neareft the truth, provided the changes be uni- 

 formly periodical. 



Hitherto the opinion of aftronomers concerning the changes 

 of Algol's light feem to be very unfettled ; at leaft none are 

 univerfally adopted, though various are the hypothefes to 

 account for it ; fuch, as fuppofing the ftar of fome other than 



a fpherical 



