Signals extracted from the General and Additional Sailing and Fighting Instructions by Day and by Night. 1782. Compiled in MS and believed to have belonged to a Lieutenant Burges of H.M.S. LONDON, who is thought to have copied it from another one. It has an elaborate explanation of a numerary method of signalling in the chessboard system, not exactly that being concurrently experimented by Howe and Kempenfelt, but closely resembling it. The system was never adopted. The book was an advance on others in its method of classifying signals into 20 categories. It is divided into two halves: one for making signals and one for decoding them. It also contains signals appertaining to hassling sails course and action. Included is a letter from Julian Corbett re. volume. [Number 3]