K. & F. N. SPON, 16, BUCKLEKSBURY, LONI 



ELECTEICITY. 



Scientific Researches, experimental and thoo- 

 rectical in Electricity, Magnetism, Galvanism. 

 Electro-Magnetism, and Electro-Chemistry, illus- 

 trated with engravings, by William Sturgeon, 

 royal 4to, cloth, 21s. 



ELECTEO-METALLUEGY. 



Contributions towards a History of Electro- 

 Metallurgy, establishing tho Origin of the Art, 

 by Henry Dircks, crown 8vo, cloth, 4s. 



ENGINEERS' POCKET BOOK. 



A Pocket Book of useful Formula) and Memo 

 randa for Civil and Mechanical Engineers, by 

 Guildford L Moles worth, Member Institute Civil 

 Engineers, Chief Resident Engineer Ceylon Eail- 

 way, sixth edition, with a supplement, roya] 

 32mo, roan, 4s. 6d. ; the supplement can be had 

 separate, price 3d. 



" Mr. Molesworth lias done the profession a considerable and lasting 

 benefit by publi>hing liis very excellent rocket-Book of Kngincering 

 Formula?. What strikes us first, is, the very convenient size and form 

 of the I took adopted by the author, ami next in glancing over its con- 

 tents we are pleased to find many really useful tilings not found else- 

 where iu any Engineering Pocket- Book. Mr Molcsworth's treatment 

 of Hydraulics and Hydro- Dynamics, and Motive Power, generally, is 

 excellent. To the latter branch of h s subject. Mr Molesworth ha. 

 evidently devoted considerable attention, a id his collection of formula' 

 will be found most useful But to stop to detail everything that is 

 and u-eful in this book would be nearly coital to re-printing a 

 its contents " Arti:an, April, 18G3. 



ENGINEERS' PEICE BOOK. 



Appleby's Illustrated Hand-book and Prices cur- 

 rent of Machinery and Iron Work, with various 

 useful Tables of Reference, compiled for the use 

 of Engineers, Contractors, Builders, British and 

 Foreign Merchants, &c., 8vo, cloth, 2s. 6d. 



FEENCH CATHEDEALS. 



French Cathedrals, by B. Winkles, from drawings 

 taken on the spot, by E. Garland, Architect, with 

 an histoiical and descriptive account, 50 plates, 

 4to, cloth, 18s. 



