[ 483 ] 
of the fhock from charged glafs is in proportion to 
the quantity of furface of the glafs coated ; fo that 
my f hocks from thofe large jars mull have been 
much greater than any, that couid be received from 
a phial held in the hand. 
I am, with great reipedt, 
S I R, 
London, Your moft obedient Servant, 
Dec. 21, 1757. 
R. Franklin. 
LX. Obfervations on the late Comet in Sep- 
tember and Odtober 1757 ; made at the 
Hague by Mr. D. Klinkenberg : In a 
Letter to the Rev. James Bradley, D. D. 
Ajlronomer Royal , and F. R.S, and Mem- 
ber of the Royal Academy of Sciences at 
Paris. Lranflated from the Low Dutch. 
S I R, 
Read Jan. 12, Hope you will be pleafed to excufe 
J 7 S 8 - the liberty, which I take, of troubling 
you with my obfervations on the comet, which 
made its appearance here, and in other parts of Eu- 
rope, in the months of September and October lad: ; 
and which, according to the news-papers, was iirft 
obferved the nth September by Mr. Gartner, at 
Dorlkeurtz near Drefden ; then by me, on the 1 6th 
Qqq 2 of 
