[Sidenote: Communicated by Sir D. E. Wood, K.C.B., Captain Gordon, C.B., and Colonel G. T. Field, R.A.] The following was the establishment of a troop of Horse Artillery when sent on active service to the Crimea in the Spring of 1854:-- Officers 6 N.-C. Officers 15 Gunners 80 Drivers 77 Trumpeters 1 Farriers 1 Shoeing smiths 4 Collar-makers 2 Wheelers 2 _Equipment_-- Light 6-prs. 4 12-pr. howitzers 2 6-pr. ammunition waggons 5 12-pr. howitzers 4 6-pr. rocket carriage 1 Forge 1 Store-limber waggon 1 Store cart 1 Spare gun carriage 1 (not horsed). _Horses_-- Officers 12 Troop 192 --- Total 204 On the 29th November, 1855, the following was laid down as the detail of a troop of Horse Artillery with the army in the Crimea. Officers 6 N.-C. Officers 20 Gunners 97 Drivers 123 Trumpeters 1 --- Total 247 Farriers 1 Shoeing smiths 6 Collar-makers 3 Wheelers 2 --- Total 259 --- _Equipment_--4 9-pr. guns. 2 24-pr. howitzers. 6 gun ammunition waggons. 5 howitzer waggons. 1 store-limber waggon. 1 spare gun carriage. 1 forge. 1 rocket carriage. 1 store cart. 1 medicine cart. 2 forge waggons. 3 water carts. -- Total 28 carriages. No. of Horses. Riding 92 Draught 180 --- Total 272 --- Of the troops which had been reduced after Waterloo, B was reformed as a reserve half troop in 1855, and completed in the following year: and G and K Troops were reformed in 1857. The highest point reached between the reductions after Waterloo, and the year 1857, was in February 1856, when the total of all ranks reached 1950, and the number of horses was 1370. The amalgamation of the Royal with the Indian Artilleries brought the strength of Royal Horse Artillery available for service to an unprecedented standard: at the present moment there are in the regiment thirty-one _service_ and two _depôt_ Horse Artillery Batteries. But this chapter relates solely to the _old_ Royal Horse Artillery. As yet the _numerical_ variations in the Royal Horse Artillery have alone been treated. But there are many other details, mainly of interior economy, which will doubtless be interesting to the modern representatives of the arm, and which may here be briefly stated. [Sidenote: Maj.-Gen. Brome to the Duke of Richmond, 6/9/17.]