I 
( Z ) 
VI. The wd'j of proceeding in the Small Pox InocuU* 
ted in New England. Communicated hy Henry New- 
man, Efy ; of the Middle Temple. 
VII. A Letter from Dr. Nettleton, Thyfcian at Hali- 
fax in Yorkihire, to Dr. Whitaker, concerning the 
Inoculation of the Small Pox. 
VIII. A Letter from the fame Learned and Ingenious 
Gentleman, giving an Account of his farther Progrejs in 
Inoculating the Small Pox: To Dr*^ Jurin, R. S, Seer. 
L Longitude of Buenos Aires, determmd from 
an ObferVation made there by Pere Feuillee. By 
Edm, Halley LL. D. Aftronomer ^yal, and 
F.R. S. 
1 HAVE as Occafion offered, made it my Buff- 
nefs to colled fuch Celeftial Obfervations as might 
be of Ufe to determine the Longitudes of Places' on 
the Sea coafl of the World 5 in order to get as near 
as poffible the Out-line, or true Figure of the Earth, 
without which our Geography of the Inlands muff ne- 
ceflarily be very infufficient. The Memoirs of the Roy- 
al Academy of Paris, afford a good Number of Ob- 
fervations of this Kind, and among the reft, there is 
.one made at Buenos Aires on the River of Plate, in 
the South America, by Pere Feuillee in his Voyage to 
Perux who, in the Memoirs for the Year 1711, is 
faid to have obferved at that Place on the 19'^ of 
Augufl, 1708. the Immerilon of the Star in the 
Southern Foot of f'irgo (marked by Bayer with ?\.) 
behind the obfeure Limb of the Moon. Being de- 
firous to lee what Longitude might be deduced from 
this 
