8 SCIENTIFIC BOOKS PUBLISHED BY 



Henrici's Skeleton Structures. 



8vo. Cloth. $1.50. 



SKELETON STRUCTUEES, especially in their Application to 

 the building of Steel and Iron Bridges. By Olaus Henkici. 

 With folding plates and diagrams. 



By presenting these general examinations on Skeleton Structures, with 

 particular application for Suspended Bridges, to Engineers, I Tenture to ex- 

 press the hope that they 'vrill receive these theoretical results \i^th some confi- 

 dence, even although an opportunity is wanting to compare them with practi- 

 cal results. O, H. 



Useful Information for Railway Men. 



Pocket form. Morocco, gilt, $3.00. 



Compiled by W. G. Hamilton, Engineer. Eifth edition, revised 

 and enlarged. 570 pages. 



" It embodies many valuable formulae and recipes useful for railway men, 

 and, indeed, for almost every class of persons in the world. The ' informa- 

 tion ' comprises some valuable formulae and rules for the construction of 

 boilers and engines, masonry, properties of steel and iron, and the strength 

 of materials generally." — Uailroad Oazette, Oliieago. 



Brooklyn Water "Works. 



1 vol. foUo. Cloth. $25.00. 



A DESCEIPTIVE ACCOUNT OF THE CONSTRUCTION OF 

 THE WUEKS, and also Reports on the Brooklyn, Hartford, 

 Belleville, and Cambridge Pumping Engines. Prepared and 

 printed by order of the Board of Water Commissioners. With 

 59 illustrations. 



Contents. — Supply Ponds — The Conduit -Bidgewood Engine House and 

 Pump Well — Ridgewood Engines — Force Mains — Kidgewood Reservoir — 

 Pipe Distribution — Mount Prospect Reservoir — Mount Prospect Engine 

 House and Engine — Drainage Grounds — Sewerage Works — ^Appendix. 



