| Title | Confidential report on the experiments with field artillery proposed for comparing the merits of the system of rifling and breech loading proposed by Sir William Armstrong and Joseph Whitworth, with reference to military and naval service. April 18. Enclosed confidential report by Lynall Thomas, Superintendent, Royal Laboratories, on the action of fired gunpowder; and two further letters by Thomas. Confidential report dated 19 November 1858; letters dated 17 March and 28 March. |