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Dunstan Times, Issue 419, 29 April 1870, Page 3

Science and akt. —A striking instance of the immense value a small piece of steel may acquire by the great power of skilled mechanicalf labor is the balance spring of a watch. From its extreme fineness 'andjdelicacy'four thousand weigh not more than one ounce, and exceed in value "£I,OOO. A most interesting little work, describing the rise and progress of watchmaking, has been published by .1. W. Benson, of 25, Old ?Bond-street, and the City Steam Factory, 58 and CO. Ludgate hill, London. The book, which is profusely illustrated, gives a full description of the various kinds of watches and clocks, with their prices. Mr. Benson, who holds the appointment to the Prince of Wales, has also published a pamphlet on Artislic Gold Jewellery, illustrated with beautiful designs of Bracelets, Brooches, Ear-rings, Lockets, &c., suitable for wedding, birthday, and other presents. These pamphlets are sent post free for two stamps each, and they cannot be too strongly recommended to those contemplating a purchase, especially to residents in the country or abroad, who are thus enabled to select any article they may require, and have it forwarded with