[87] 
Immerfion and Emerfion were obferved. 
The Imnierfion was {km SLt ToHeridg ( wIugIi place is 
about 9 Miles irom Lo^do^^ and nearly 2 5 feconds of time to 
the JVeJttvards thereof ) by Mr. Edward HaineSy a Member 
of the R. Socktyj well verft in this fort of Obfervation : who 
between a gap of the Clouds obferved the Conta£lof the 
Moons limb and Jupitersy at 15^. 3 J min, the Clouds clofing 
again permitted him to obferve no more, however from this 
we may conclude the Central Immerfion at London j to have 
been 1 5^. 4^ min. 
The Emerfion was obferved at London by £. Hdley, to 
fall out at I <^h, 49 min; for at 1 5/!?. 50 min. Jupiter was all 
out, and the limbs fo little feperated, that he judged^ that 
a minute before, the center of Jupiter had been upon the 
Moons cdg: The point of the Emerfion was over againftthe 
part of the fpot, called by Hemlms- InfuU Macra^ 
or at the 342^ divifion of the inner limb of his Mapp of the 
Moon. 
What has been obferved of thefe two Occultations elfe- 
where, would be very acceptable to the R. Society ^ fuch 
fort of Obfervations,if accurate,being of fingular ufe tp deter- 
mine the L(?;^^/>W^/ of Places, efpecially thofe that are far 
remote; for which purpofe all Curious Perfe)ns furnifhed 
with Inftruments and Skill in Aftronomical matters, are de- 
fired to let flip none of thefe opportunityes, which may be 
of fo great hewe&t to Geography. 
M 
A 
