( t<$?8 ) 
could perceive that the Moon was eclipfed, and then as 
near as I dould judge, Aie had been fo about 5 or 4 mi- 
nutes at moft, from whence we may conclude it began 
at London about 31 or 52 minutes after 4 the fame 
morning. 
Mr Brattle found, that at 44 minutes after 11 at Night, 
part of the Moon's Disk look'd fomewhat duskifh, and 
that at 52 minutes, the Shadow was well entred, fo that 
from,hence^ as well as from a Comparifon of the Ingrefs and 
Egrefs of the principol Spots^ it probably began there about 
minutes after li, whence it follows^ that Cambridge in 
New England lies 4^ 42 U 70 37 VVefiward of 
the Meridian of London. 
I happen d to fee the Moon the fame morning at 55 
minutes after 5, when fhe wanted at moft but 3 minutes 
of being totally eclipfed 5 fo that at London fhe immerg d 
at 38 minuted paft 5. 
Mr Brattle (aw her immerge exaftly at 54 minutes after 
12, whence it follows,that the difference of the Meridians 
found by comparing thefe obfervatiGns,is 4 h 43' or 70° 
52 'agreeing very well with the former 5 fo that by taking 
a mean between them, the difference of Longitude of 
the 2 Places is 4h 43', or 70° 45'. 
I faw no more of the Eclipfe that morning, and fhould 
be very glad to meet with fome other obfervaiions to 
confirm thefe, but their mutual agreement gives great 
reafon to believe that theDeduftions are good, and may 
be rely'd upon. 
IV. Ob. 
