I). VAN NOSTKAND. 



5 



Clarke's Quincy Bridge. 



4to. Cloth. $7.50. 



DESCRIPTION OF THE IRON RAILWAY Bridge across the 

 Mississippi River at Quincy, Illinois. By THOMAS CURTIS CLARKE, 

 Chief Engineer. Illustrated with twenty-one lithographed 

 plans. | 



Illustrations. 



33LATES. G-eneral Plan of Missis- 

 sippi River at Quincy, showing loca- 

 tion of Bridge. Ha. General Sections 

 of Mississippi River at Quincy, show- 

 ing location of Bridge. 116. General 

 Sections of Mississippi River at Quin- 

 cy, showing location of Bridge. III. 

 General Sections of Mississippi River 

 at Quincy, showing location of Bridge. 

 IV. Plans of Masonry. V. Diagram 

 of Spans, showing the Dimensions, 

 Arrangement of Panels, efcc. VI. Two 

 hundred and fifty feet span, and de- 

 tails. VII. Three hundred and sixty 

 feet Pivot Draw. VIII. Details of 

 three hundred and- sixty feet Draw. 

 IX. Ice- Breakers, Foundations of Piers 

 and Abutments, Water Table, and 



Curve of Deflections. X. Founda- 

 tions of Pier 2, in Process of Con- 

 struction. XI. Foundations of Pier 

 3, and its Protection. XII. Founda- 

 tions of Pier 3, in Process of Construc- 

 tion, and Steam Dredge. XIII. Foun- 

 dations of Piers 5 to 18, in Process 

 of Construction. XIV. False Works, 

 showing Process of Handling and Set- 

 ting Stone. XV. False Works for 

 Raising Iron Work of Superstructure. 

 XVI. Steam Dredge used in Founda- 

 tions 9 to 18. XVII. Single Bucket 

 Dredge used in Foundations of Bay 

 Piers. XVIII. Saws used for Cut- 

 ting Piles under water. XIX. Sand, 

 Pump and Concrete Box. XX Ma- 

 sonry Travelling Crane. 



Whipple on Bridge Building. 



8vo, Illustrated. Cloth. $4.00. 



AN ELEMENTARY AND PEACTICAL TEEATISE ON 

 BBIDGKE BUILDING. An enlarged and improved edition of 

 the Author's original work. By S. WHIPPLE, C. E., Inventor of 

 the Whipple Bridges, &c. Second Edition. 



The design has been to develop from Fundamental Principles a system easy 

 of comprehension, and such as to enable the attentive reader and student to 

 judge understandingly for himself, as to the relative merits of different plans 

 and combinations, and to adopt for use such as may be most suitable for the 

 cases he may have to deal with. 



It is hoped the work may prove an appropriate Text-Book upon the subject 

 treated of, for the Engineering Student, and a useful manual for the Practic- 

 ing Engineer and Bridge Builder. 



