6 SCIENTIFIC BOOKS PUBLISHED BT 



Stoney on Strains. 



New and Revised Edition, with numerous illustrations. 



Eoyal 8vo, 664 pp. Cloth. $15.00. 



THE THEOET OF STRAINS IN GIEDEES and Similar Struc- 

 tures, with Observations on the Application of Theory to Practice, 

 and Tables of Strength and other Properties of Materials. By 

 Snrsoir £. Signet, £. A. 



Roebling's Bridges. 



Imperial foUo. Cloth. $25.00. 



liONG AND SHOET SPAN EAILWAY BEIDGES. By Jomr 

 A. EoEBLiNG, 0. E. Illustrated with large copperplate engrav- 

 ings of plans and views. 



List of Plates 



1. Parabolic Trass Bail way Bridge. 2, 3, 4, 6, 6. Details of Parabolic 

 Truss, with centre span 500 feet in the clear. 7. Plan and View of u. Bridge 

 over the Hiasissippi Biver, at St. Louis, for railway and common traveL 8, 9, 

 10, 11, 13. Details and View of St. Louis Bridge. 13. Railroad Bridge over 

 the Ohio. 



Diedrichs' Theory of Strains. 



8to. Cloth. $5.00. 



A Compendium for the Calculation and Construction of Bridges, 

 Eoofs, and Cranes, with the Application of Trigonometrical 

 ' Notes. Containing the most comprehensive information in re- 

 gard to the Eesulting Strains for a permanent Load, as also for 

 a combined (Permanent and E oiling) Load. In two eeotions 

 adapted to the requirements of the present time. By Johit Dies- 

 BicHs. Illustrated by numerous plates and diagrams. 



" The want of a, compact, universal and popular treatise on the Constrao- 

 tion of Roofs and Bridges — especially one treating of the influence of a varia- 

 ble load — and the unsatisfactory essays of different authors ou the suhjact, 

 induced me to prepare Qaa work." ^ 



