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RANKEX, Francis A. The Strains in Trusses computed by means 

 of diagrams, with Twenty Examples, drawn to scale. 



8vo. 63 pp. New-York, 1873. 

 RANKINE, William J. M. A Manual of Civil Engineering. 



8vo. 784 pp. London, 1867. 



REBHANN, Georg. Theorie der Holz-und Eisen-Constructiou mit 

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8vo. 602 pp. Vienna, 1856. 



REGNAULT, J. Manuel des Aspirants au grade d'Ingenieur des 

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 REID, Hei^ry. A Practical Treatise on Concrete. 



8vo. 108 pp. London, 1869. 



A Practical Treatise on the Manufacture of Portland 



Cement, with a Translation of A. M. Zipowitz's work on 

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8vo. 188pp. London, 1868. 



REPORT of the Board of Commissioners of the Irrigation of the San 

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 SACKED, E. F. v. Katechismus der Baustyle. 



12 mo. 168pp. Leipsig, 1867. 



SCHEFFLER, Hermann. Theorie der Gewolbe, Futtermauern und 



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SHREVE, Samuel H. A Treatise on the Strength of Bridges and 



Roofs, with practical applications for the use of Engineers 



and Students. 8vo. 346pp. New- York, 1873. 



THURSTOIST, R. H. On the Molecular Changes Produced in Iron by 



Variations of Temperature. Reprinted from the Iron Age. 



8vo. Philadelphia, 1873. 



TREDGOLD, Thomas. Elementary Principles of Carpentery. Second 

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The same as above. Fifth edition. Corrected and enlarged, 



with an Appendix, by Peter Barlow. 



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TROWBRIDGE, W. P. Proposed Plan for Building a Bridge across 

 the East River, at Blackvvell's Island. Vol. x., Pamphlets. Quarto 

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Theory of the Strength of Materials, illustrated by Applica- 

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 WAKE, W. R. An Outline of a Course of Architectural Instruction. 



Vol. XXX., Pamphlets. Octavo series. 8VO. 36pp. Boston, 1866. 



WETHERILL, C. M. On a New Variety of Asphalt, (Melau- As- 

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4to. 6pp. Philadelphia, 1852. 



WOOD, De Volson. A Treatise on the Resistance of Materials, and 

 au Appendix on the Preservation of Timber. 



8vo. 245 pp. New- York, 1871. 



