216 



Observations on the Comet of Halley. 





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QOOO'*00«5lOCOi-it:^-t"COOGO CO't 



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 TfTHr-lCO (MCOIMfNCO (NCO i-H 



S5-*oiMt-(Ni-i--if-i-*inia)-H i-i-i 



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 COCOOCOCOt^QOOllftt^OOmOO 



oococo>>c^co'^^co — cit-coco 



t— t~C0C0<M'^O(M03O(M'M05 



eot-'oo-i'-^coooooot— CO 



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