8 SCIENTIFIC BOOKS PUBLISHED BY 



Henrici s Skeleton Structures. 



8vo. Cloth. $1.50. 



SKELETON STRUCTURES, especially in their Application to 

 the building of Steel and Iron Bridges. By OLAUS HENRICI. 

 With folding plates and diagrams. 



By presenting these general examinations on Skeleton Structures, -with 

 particular application for Suspended Bridges, to Engineers, I venture to ex 

 press the hope that they -will receive these theoretical results with 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, $2.00. 



Compiled by W. G. HAMILTON, Engineer. Fifth edition, revised 

 and enlarged. 570 pages. 



&quot; 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.&quot; Railroad Gazette, Chicago. 



Brooklyn Water Works. 



1 vol. folio. Cloth. $25.00. 



A DESCRIPTIVE ACCOUNT OF THE CONSTRUCTION OF 

 THE WORKS, 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 -Ridgewood Engine House and 

 Pump Well Ridgewood Engines Force Mains Ridgewood Reservoir 

 Pipe Distribution Mount Prospect Reservoir Mount Prospect Engine 

 House and Engine Drainage Grounds Sewerage Works Appendix. 



