CONTENTS. 
Vll 
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Eeport of an Experiment carried on by the Special Committee on Iron, at 
Shoeburyness, 17th March, 1863, to test three rolled Armour Hates, 
supplied by Messrs Brown and Co. of Sheffield. Contributed by Capt. 
E. J. Bruce, E.A. ......... 256 
On the “ Time of Burning ” of Fuzes under different Atmospheric Pressures. 
Extracted from Comptes Eendus hebdomadaires des Seances de l’Academie 
des Sciences. Yol. LY, No. 21. Translated from the Erench of M.Hufour 
(of Lausanne). By Major EitzHugh, E.A... 259 
Eesults of Experiments made to test various forms of Eiffing. By John 
Anderson, Esq., Assistant Superintendent, Eoyal Gun Factories . 263 
Experiments performed in the Eoyal Gun Factories with “ Sterro Metal.” By 
John Anderson, Esq., Assistant Superintendent, Eoyal Gun Factories ... 265 
The Lock or Turn of Carriages and their Turning Angles. By Lieut.-Col. 
H. H. Maxwell, E.H.A..... 266 
Annual Eeport and Abstract of Proceedings of a General Meeting of the 
Eoyal Artillery Institution, held on Tuesday, May 12, 1863. Major- 
General Sir E. J. Dacres, K.C.B. in the Chair. 271 
" On the Change of Form assumed by Wrought-iron and other Metals when 
Heated and then Cooled by partial immersion in Water.” By Lieut.-Col. 
H. Clerk, E.A., F.E.S... 303 
Account of an Experiment carried on at Shoeburyness, 27th April, 1863, 
against a Target proposed by Mr Chalmers, and constructed at the Milwall 
Iron Works. Contributed by Captain E. J. Bruce, E.A... 316 
On a Curious Instance of Electrolytic Action. By F. A. Abel, Esq., F.E.S. 
Communicated by the Secretary, E.A.I... 320 
Eeport of Ordnance Select Committee, No. 2685, dated 6th February, 1863. 
On Competitive Eifled Cast-iron Guns. Communicated by direction of 
the Secretary of State for War ..... 323 
Eeport on Baron Lenk’s Gun Cotton, by Professors Hr Eedtenbacher, Hr 
Schrotter, and Hr Schneider. To His Excellency Field-Marshal Johann 
Freiherr Kempen von Fichtenstamm, President of the Eoyal Imperial 
Commission on Gun Cotton, June, 1863. With some comments furnished 
by F. A. Abel, Esq., F.E.S., Chemist to the War Hepartment. Com¬ 
municated by the Secretary, E.A.I..... 367 
On the Products of the Combustion of Gun Cotton and Gunpowder under 
circumstances analogous to those which occur in practice. By Lieut. 
von Karolyi. From Philosophical Magazine, October, 1863 .. 383 
Eeport of Experiments instituted by the Assistant Superintendent of the 
'Eoyal Carriage Hepartment, at the suggestion of the Eoyal Engineer 
Committee, and sanctioned by the Hirector of Ordnance, 29th August, 
1863, to ascertain the actual vertical pressure exerted by the various natures 
of Field and Siege Artillery, when passing over Pontoon Bridges; and also 
whether the maximum pressure is occasioned by the Horses or Carriage. By 
Lieut.-Col. G. Shaw, E.A., Assistant Superintendent, Eoyal Carriage 
Hepartment,........ 395 
