r ?7? )' 
. , (Numb. 3;::.) 
PHILOSOPHICAL 
transactions. 
For the Months of Julyr and. Auguft, 1 709. 
^ " 
The C O N T E N T.S. 
J*1| experiments upon Metals^ made with the burning- ^lafs 
JL^ of the Duke of Orleans. Monfteur Geoffroy, 
F,R. S. ' ' 
w 
II. Obfervations upon Incifons of the Cornea. By Monfieur 
Gandolphe, Do&or of Phjifck at Dunkirk. April, 
1709. ^ ^ 
III. An Account of an Experiment, /hewing that an OhjePJi 
• may become vi/ible through fuch an Op^e ^ody as Pitch 
in the Dark,, while ‘it is under the Circumjiances of Attri- 
tion and a Vacuum. By Mr. Fr. Hauksbee, F. R, S. 
\ 
IV. A Letter from Mr* Ralph Thoresby, F. R, S. to 
Dr* Hans Sloane, R* S. Sec, concerning fome Ancient 
Brafs In (iruments found in York(hire. - 
V. A Letter from Mr. Tho. Hearne, M. A ', of Qy:^oxd, 
to Air. Ralph Thoresby, K R. S. occafioned by fome 
'v Antiquities lately difcoverd near Bramhara-Moor in 
Yorkihire. i 1 
# 4 
Kkk 
1. Ex- 
\ 
