A steel balance by De Grave, Short & Fanner with trade label in mahogany case 8½ins. (21.5cm.) wide; another steel balance in oak case; a cavalry officer's knee map board engraved C.N. Gilbey; a three-draw brass telescope reconditioned by Barker a clinometer by J. Pitkin & Co., dated 1912, in case and a heliograph in leather case.