Instructions and regulations for the formations and movements of the cavalry. London: Printed for the War-office by T. Egerton, 1799. 374 pages:

http://books.google.com/books?id=PPIK4PWW2qMC
http://www.archive.org/details/instructionsand00conggoog

An Elucidation of Several Parts of His Majesty's Regulations for the Formations and Movements of the Cavalry:

These were available for on-line download via Gale during several open periods, which were anounced here on the NSF. They are not currently available without going through a subscribing library to Gale's service. He who hesitates is lost!