[ 67 3 
Thirdly, Whether or no thefe two Obfervers lafl- 
mcntion’d received the Shock at the fame time ? 
They were feen to be both convulfed in the fame 
Inftant. 
July 28. 1747, there met again at the fame Place, 
to proceed farther in thefe Inquiries, the Prefident 
of the Royal Society , the Right Honourable the 
Lord Charles Cavendifo , the Reverend Mr. Birch , 
Sir Francis ‘ Dafhwood Baronet, Peter SDaval Efq; 
Mr. Ellicott , Mr. George Graham , Richard Gra- 
ham Efq; Mr. Robins , Mr. Short , Dr. Wilbraham y 
and myfelf, who were of the Royal Society, and 
Dr. Bevis. 
The ele&rical Commotion was firft tried from A 
to B before-mention’d, the iron Wire in its whole 
Length being fupported, without any-where touch' 
ing the Ground, by dry Sticks placed at proper Inter- 
vals of about three Feet in Height. The Obfervers both 
at A and B flood upon Originaliy-Eledrics, and, 
upon the Signal, dipped their iron Rods into the 
YVatcr. Upon difeharging the Phial, which was 
feveral times done, they were both very much 
fhocked, much more fo than when the conducing 
Wires lay upon the Ground, and the Obfervers 
flood thereon, as in the former Experiments. The 
fame Experiment was tried with the Obferver at 
4. 
A , inftead of the iron Rod, dipping a narrow Slab 
of Portland Stone into the Water of about three Feet 
and a half in Length 5 when the Shock was felt, but 
not fo fevere as through the iron Rod. This de- 
monftrated, as was before fuggefled, why the elec- 
trical Commotion was not felt ftronger by the Ob- 
fervers upon the Weftern Shore of the Weftminftcr - 
I 2 Bridge : 
cr> / 
