a very ferene air, free from fmoke, which enabled 
him to difcern and keep light of the moon during 
the whole occultation, fo that he might obferve the 
moment of the emerlion with the fame certainty, 
as that of the immerfion : for Mr. Canton, with a 
refledtor of 1 8 inches only, that day plainly faw the 
moon at his houfe in Spital-fields. 
The Greenwich Obfervation. 
Apparent time. h ' ' 
1751 April iy, 22 41 45 The firft contaft; doubt- 
ful to 1 fecond. 
42 18 Quite immerged. 
2 3 I 5 ’ 3 ^t Began to emerge. 
16 8-f Wholly emerged. 
16, 1 39 12 Venus palfed the meri- 
dian. 
J. Short. 
XXXI. An Account of Mr. Benjamin Frank - 
linV Treat if e , lately publifoed , intituled \ 
Experiments and Obfervations on Eledlri- 
city, made at Philadelphia in America 5 
by Wm. Watfon, f. R. S. 
Read June 6. 
1751. 
letters to 
3 
M R. Franklin's treatife, lately prefented 
to the Royal Society, coidifts of four 
iis correspondent in England, and of an- 
other 
