196 Proceedings of the Wernerian Society, 
Robert Jameson, Esq. Prof. Nat. Hist. Edin. President. 
Sir Patrick Walker, 
T. Mackenzie, Esq, M, P. 
Robert Stevenson, Esq. 
David Falconar, Esq. 
P. Neill, Esq. Secretary, Wm. Ellis, Esq. Treasurer. 
James Wilson, Esq, Librarian. P. Syme, Esq. Painter. 
» Council. 
Thomas Sivright, Esq. Wm. Newbigging, Esq. 
Dr James Gregory junioTo Dr Samuel Hibbert. 
Captain Thomas Brown. Pat. Small Keir, Esq. 
Colonel David Williamson, Robert Bald, Esq. 
Dec. % — Professor Jameson read an account of the progress 
of the Overland Expedition from the Settlements on the shores 
of Hudson'^s Bay towards the Arctic Ocean, and exhibited a chart 
of the north-west side of Hudson’s Bay, drawn by an Esqui- 
maux. (This communication will be found in our present Num- 
ber, p. 141., &c.) 
At the same meeting was read the first part of an Account of 
a Voyage into Baffin’s Bay, by Mr William Jameson, surgeon. 
Dec. 16. — Mr Adie exhibited, and read the description of, an 
instrument for ascertaining the specific gravity of bodies, with- 
out the use of weights or calculations. This instrument is equal- 
ly accurate with the hydrostatic balance ; but the operation of 
taking the specific gravity by it is much simpler, is done in a 
much shorter time, and the instrument itself is greatly cheaper. 
Experiments were made with it before the Society, to the satis- 
faction of all present. 
At the same meeting, Mr JohnDeuchar explained the nature 
of an apparatus, suggested some time ago by Colonel Yule, for 
firing ordnance without the use of a light or the usual prime. 
Mr Deuchar also gave an account of a number of experiments 
performed with the above apparatus, several of which he shewed 
to the Society ; in one of these the flame passed through three 
pieces of the wire-gauze used in Sir Humphry Davy’s safety 
lamp ; and in another was shewn the singular result of the flame 
passing through some gunpowder without setting it offi 
V ice-Presidents. 
