He was author of The Gunner's Glasse, wherein the diligent Practitioner may see his defects, and may from point to point reform and amend all errors that are commonly incident to unskilful gunners. The book is an account of the great gun exercise as then in vogue. The dedication to the Earl of Warwicksays that he had spent the greatest part of his time in Dover Castle; and that he had been a gunner for about sixty years. In the body of the work he mentions incidentally that he had served also as a gunner in the Low Countries and in Germany.