[ < 4 ° ] 
applying the rubbed Tube td one End of the Wood, 
the other attraded Leaf-brafs, or a Thread hanging 
down from a Stick. Then, inftead of the glafs 
Plates, I laid the long Piece of Wood on Two Cakes 
of Rofin, and applied the rubbed Tube to the End of 
the faid Wood, which conduded the Eledricity to 
the other End, where Leaf brafs and the Thread w T ere 
attraded in the fame Manner. 
This (hews that, in order to condud Eledricity 
along any non-eledric Body, it is indifferent what 
Kind of Eledricity its Supporters are endowed with, 
provided they are eledric. 
XXII. A Letter from John Huxham, M. 2 ). 
F. R. S. to C. Mortimer, M. 2 ). Seer . R. S. 
concerning an Extraordinary Hernia Ingui- 
nal^ and an Obfervation of the Eaffage of 
Mercury over the Sun, Oft. 3 t. 1738. 
Honoured SIR, 
A S the frequent Diffedion of morbid Bodies 
tends greatly to afeertain the Diagnoftic and 
Prognoftic of Difcafes, during my Studies, and for 
the firft Six or Eight Years of my Pradice, I applied 
myfelf to it with great Afliduity. Some few of the 
more remarkable Cafes, I have met with, I beg Leave 
to fend you from time to time; and, if any of them 
appear to you worthy of that Honour, you may lay 
them before the Royal Society.— —The following 
may 
