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The New Formula for Mean Velocity of Discharge 



of Rivers and Canals. By W. R. KUTTER. Translated from articles in 

 the * Cultur-Ingenieur,' by Lowis D'A. Jackson, Assoc. Inst. C.E. 

 8vo, cloth, 12s. 6d, 



Practical Hydraulics ; a Series of Rules and Tables 



for the use of Engineers, etc., etc. By Thomas Box. Fifth edition, 

 numerous plates^ post 8vo, cloth, ^s, 



A Practical Treatise on the Construction of Hori- 

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Tim Describing the Chief Methods of Mining, 



Dressing and Smelting it ahroad ; with Notes upon Arsenic, Bismuth and 

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Perspective^ Explained and Illustrated. By G. S. 



Clarke, Capt. R.E. With illustrations^ 8vo, cloth, 3^. 6d. 



The Essential Elements of Practical Mechanics; 



hased on the Principle of Work^ designed for Engineering Students. By 

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Contents : 



Chap. I. How Work is Measured by a Unit, both with and without reference to a Unit 

 of Time — Chap. 2. The Work of Living Agents, the Influence of Friction, and introduces 

 one of the most beautiful Laws of Motion— Chap.j. The principles expounded in the first and 

 second chapters are applied to the Motion of Bodies — Chap. 4. The Transmission of "Work by- 

 simple Machines— Chap. $• Useful Propositions and Rulesi^ 



The Practical Millwright and Engineers Ready 



Reckoner; or Tables for finding the diameter and power of cog-wheels, 

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 By Thomas Dixon* Fourth edition, i2mo, cloth, 31. 



Breweries and Mailings : their Arrangement, Con- 

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A Practical Treatise on the Manufacture of Starchy 



Glucose^ Starch-Sugar^ and Dextrine, based on the German of L. Von 

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 other authorities. By Julius Frankel ; edited by Robert Hutter, 

 proprietor of the Philadelphia Starch Works. With 58 illustrations, 

 344 pp., Zyo^ cloth, i8j. 



B 3 



