WORKS PUBLISHED BY LOCKWOOD & CO. 



Number s Great Work on Bridge Construction. 



A COMPLETE and PRACTICAL TREATISE on CAST and 

 WROUGHT-IRON BRIDGE CONSTRUCTION, including 

 Iron Foundations. In Three Parts Theoretical, Practical, and 

 Descriptive. By WILLIAM HUMBER, Assoc. Inst. C.E., and M. Inst. 

 M. E. Third Edition, revised and much improved, with 115 Double 

 Plates (20 of which now first appear in this edition), and numerous 

 additions to the Text. In 2 vols. imp. 4to., price 6/. i6.r. 6d. half- 

 bound in morocco. 



"A very valuable contribution to the standard literature of civil engineering. In 

 addition to elevations, plans, and sections, large scale details are given, which very 

 much enhance the instructive worth of these illustrations. No engineer would wil- 

 lingly be without so valuable a fund of information." Civil Engineer and A rchitecfs 

 Journal. 



"The First or Theoretical Part contains mathematical investigations of the prin- 

 ciples involved in the various forms now adopted in bridge construction. These 

 investigations are exceedingly complete, having evidently been very carefully con- 

 sidered and worked out to the utmost extent that can be desired by the practical man. 

 The tables are of a very useful character, containing the results of the most recent 

 experiments, and amongst them are some valuable tables of the weight and cost of 

 cast and wrought-iron structures actually erected. The volume of text is amply illus- 

 trated by numerous woodcuts, plates, and diagrams : and the plates in the second 

 volume do great credit to both draughtsmen and engravers. In conclusion, we have 

 great pleasure in cordially recommending this work to our readers." Artizan. 



" Mr. Humber's stately volumes lately issued in which the most important bridges 

 erected during the last five years, under the direction of the late Mr. Brunei, Sir W. 

 Cubitt, Mr. Hawkshaw, Mr. Page, Mr. Fowler, Mr. Hemans, and others among our 

 most eminent engineers, are drawn and specified in great detail." Engineer, 



Weale's Engineer s Pocket-Book. 



THE ENGINEER'S, ARCHITECT'S, and CONTRACTOR'S 

 POCKET-BOOK (LOCKWOOD & Co.'s; formerly WEALE'S). 

 Published Annually. In roan tuck, gilt edges, with 10 Copper- 

 Plates and numerous Woodcuts. Price 6s. 



" A vast amount of really valuable matter condensed into the small dimen- 

 sions of a book which is, in reality, what it professes to be a pocket-book 



We cordially recommend the book to the notice of the managers of coal and other 

 mines ; to them it wiH prove a handy book of reference on a variety of subjects more 

 or less intimately connected with their profession." Colliery Guardian. 



" Every branch of engineering is treated of, and facts, figures, and data of every 

 kind abound." Mechanics' Mag. 



" It contains a large amount of information peculiarly valuable to those for whose 

 use it is compiled. We cordially commend it to the engineering and architectural 

 professions generally." Mining Journal. 



Iron Bridges, Girders, Roofs, &c. 



A TREATISE on the APPLICATION of IRON to the CON- 

 STRUCTION of BRIDGES, GIRDERS, ROOFS, and OTHER 

 WORKS ; showing the Principles upon which such Structures are 

 Designed, and their Practical Application. Especially arranged for 

 the use of Students and Practical Mechanics, all Mathematical For- 

 mula and Symbols being excluded. By FRANCIS CAMPIN, C.E. 

 With numerous Diagrams. I2mo., cloth boards, 3-r. 



[Recently published. 



" For numbers of young engineers the book is just the cheap, handy, first guide 

 they want." Middlesborough Weekly News. 



" Invaluable to those who have not been educated in mathematics." Colliery 

 Guardian. 



" Remarkably accurate and well written." Artizan. 



