I am to desire you will be pleased to acquaint, me, as soon as possible, with the number of Horses which you propose to send over to North America, to compleat [sic] the 17th Reg[imen]t of Light Dragoons under your Command.
Major General Preston I have the hon[or] to be
Rheims near Aniersham Sir &c
Source: P.R.O. W.O. 4/95, #331. Microfilm Collection at the David Library of the American Revolution. Transcribed by Gilbert Riddle.