8 CROSBY LOCK WOOD & SON'S CATALOGUE. 



GAS FITTING, A Practical Handbook. By JOHN BLACK. 



Revised Edition. With 130 Illustrations. Crown 8vo, cloth 2s. 6d. 

 GAS LIGHTING. See ACETYLENE. 

 GAS LIGHTING FOR COUNTRY HOUSES. See PETROL 



AIR GAS. 

 GAS MANUFACTURE, CHEMISTRY OF. A Practical 



Manual for the use of Gas Engineers, Gas Managers, and Students. 

 By HAROLD M. ROYLE, Chief Chemical Assistant at the Beckton Gas 

 Works. With Coloured Plate and numerous Illustrations. Demy 8vo, 

 cloth, 344 pages Net I2S - 6d - 



PREPARATION OF STANDARD SOLUTIONS-COAL-FURNACES-TESTING AND REGULATION- 

 PRODUCTS OF CARBONISATION ANALYSIS OF CRUDE COAL GAS ANALYSIS OF LIME AMMONIA 

 -ANALYSIS OF OXIDE OF IRON-NAPHTHALENE-ANALYSES OF FIRE-BRICKS AND FIRE-CLAY, 

 WELDON, AND SPENT OXIDE PHOTOMETRY AND GAS TESTING CARBURETTED WATER L.AS 

 METROPOLIS GAS MISCELLANEOUS EXTRACTS USEFUL TABLES, ETC. 



GAS WORKS. Their Construction and Arrangement, and the 

 Manufacture and Distribution of Coal Gas. By S. HUGHES, C.E. Ninth 

 Edition. Revised by H. O'CONNOR, A.M.Inst.C.E. Crown 8vo 6s. 



GOLD WORKING. JEWELLER'S ASSISTANT for Masters 

 and Workmen, compiled from the Experience of Thirty Years' Work- 

 shop Practice. By G. E. GEE. Crown 8 vo 75. 6d. 



GOLDSMITH'S HANDBOOK. Alloying, Melting, Reducing, 

 Colouring, Collecting, and Refining. Manipulation, Recovery of Waste, 

 Chemical and Physical Properties ; Solders, Enamels, and other useful 

 Rules and Recipes, etc. By G. E. GEE. Sixth Edition. Crown 8vo, cloth 



GOLDSMITH'S AND SILVERSMITH'S COMPLETE 



HANDBOOK. By G. E. GEE. Crown 8vo, half-bound ... 75. 



HALL-MARKING OF JEWELLERY. Comprising an Account 

 of all the different Assay Towns of the United Kingdom, with the Stamps 

 at present employed ; also the Laws relating to the Standards and Hall- 

 marks at the various Assay Offices. By G. E. GEE. Crown 8vo 35. 



HANDYBOOKS FOR HANDICRAFTS. By PAUL N. HAS- 



LUCK. See page 16. 



HOROLOGY, MODERN, IN THEORY AND PRACTICE. 



Translated from the French of CLAUDIUS SAUNIER, ex-Director of 

 the School of Horology at Macon, by JULIEN TRIPPLIN, F.R.A.S., 

 Besangon Watch Manufacturer, and EDWARD RlGG, M.A., Assayer 

 in the Royal Mint. With 78 Woodcuts and 22 Coloured Copper Plates. 

 Second Edition. Super Royal 8vo, 2 2s. cloth ; half-calf -2 i os. 



"There is no horological work in the English language at all to be compared to this production 

 of M. Saunier's for clearness and completeness. It is alike good as a guide for the student and as a 

 reference for the experienced horologist and skilled workman." Horological Journal. 



ILLUMINATING AND MISSAL PAINTING ON PAPER 



AND VELLUM. A Practical Treatise on Manuscript Work, Testimo- 

 nials, and Herald Painting, with Chapters on Lettering and Writing, and 

 on Mediaeval Burnished Gold. With 2 Coloured Plates. By PHILIP 

 WHITHARD (First-class Diploma for Illumination and Herald Painting, 

 Printing Trades Exhibition, 1906). 156 pages. Cr. 8vo, cloth Net 4&. 



