THE ROYAL ARTILLERY INSTITUTION. 
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9. Photography .—The Photographic department is in good working 
order, and continues to prosper; during the past year 560 negatives have 
been taken, from which about 6000 copies have been printed. 
10. Chemistry .—The Laboratory has been in constant use by the 
Classes of Officers under the Director of Artillery Studies. Voluntary 
Classes have also received instruction in Chemistry. 
11. Instruments .—The instrument room is now entirely devoted to 
Instruments. The Balances, Microscope, Air Pump, and Navez’ Ballistic 
Apparatus, are always ready for the use of members, the first are in 
much request, being used by the members of the Chemical Class working 
at quantitative analysis. 
The Barometer has been removed from the Secretary’s Office to the 
Reading Room, is set every morning, and a record kept. 
The following purchases of instruments have been made since the last 
Meeting, involving an outlay of £28, viz. : — 
RuhmkorfFs Coil, | Tangent Galvanometer, 
Spectroscope. 
A Navez’ Electro-Ballistic Apparatus and ten Cells of Bunsen’s battery 
have, through the kindness of the Secretary of State for War, been 
deposited in the Institution for the use of members. 
12. Model Room .—The Secretary of State for War being of opinion 
that all Stores supplied by the War Department, should be considered as 
“ deposited ” for the use of Members, they will in future be borne upon 
the charge of the P.S. of Stores, Royal Arsenal. 
The Committee observe that this arrangement of the Secretary of State 
is a most advantageous one, as they hope it may enable them to procure 
direct from the Royal Arsenal, the latest projectiles and other stores in 
the service, and so make the Model Room one of the most instructive 
features of the Institution. 
A “ remain” has been taken of the stores now on charge of the 
Institution, by an officer of the Military Store Department. 
The thanks of the Committee are due to Captain C. O. Browne, R.A., 
Captain Instructor, Royal Laboratory, for assistance lately given in 
classifying these Stores. 
13. Lectures .■—Lectures have been delivered weekly in the Theatre of 
the Institution by Mr Bloxam, E.C.S., on General Chemistry, and by 
Dr Percy, E.R.S., on Metallurgy. 
The following list contains a statement of Evening Lectures which have 
been given during the past winter; and the Committee have to express 
their thanks to Mr J. M. Bellew, Mr J. Brandram, Mr W. K. Clifford, and 
Mr W. Hepworth Dixon. Especial thanks are due to Mr Bloxam for 
