ABSTRACT OF PROCEEDINGS. XXXV. 
The following letter was received from Lord LISTER, 
acknowledging his election as an Honorary Member :— 
12 Park Crescent, Portland Place, 
8th July, 1903. 
My Dear Sir,—Allow me to express through you my cordial thanks to 
the Royal Society of New South Wales for the great honour they have 
done me in electing me an Honorary Member of their Body. 
Believe me, 
Very sincerely yours, 
LISTER. 
J. H. Marpen, Esq. 
THE FOLLOWING PAPERS WERE READ. 
1. “The separation of Iron from Nickel and Cobalt by Lead 
Oxide (Field’s method),’’ by T. H. Lasy. [Communi- 
cated by Prof. LIVERSIDGE, M.A., LL.D., F.R.S. | 
The accurate separation of iron from nickel and cobalt is 
peculiarly difficult. 
Review of methods.—Ammonium hydrate and chloride. 
The ferric hydrate precipitate carries down so much of the 
nickel and cobalt present as to require three reprecipita- 
tions. 
Ammonium carbonate.—This much recommended separa- 
tion is long and tedious. 
Basie acetate.—Using a small quantity of acetate to 
precipitate the iron, 99% of the nickel or cobalt can be re- 
covered with one precipitation. But it is not readily com- 
bined with the electrolytic determination of the nickel, and 
sometimes the precipitate of iron is very difficult to filter. 
Several electrolytic separations have been devised. But 
conflicting statements have been made as to their accuracy. 
Gooch and Medway, using a rotating cathode, have accur- 
ately deposited nickel in half-an-hour. 
Rothe’s extraction of ferric chloride by ether is being 
considerably used. The concentration of the reagents 
added is of more than usual importance. 
