HENRY CAREY BAIRD & CO.'S CATALOGUE. 



PERCY. The Manufacture of Russian Sheet-Iron. 



By JOHN PERCY, M. D., F. R. S., Lecturer on Metallurgy at the 

 Royal School of Mines, and to The Advance Class of Artillery 

 Officers at the Royal Artillery Institution, Woolwich; Author of 

 "Metallurgy." With Illustrations. 8vo., paper . . 50 cts. 



PERKINS. Gas and Ventilation : 



Practical Treatise on Gas and Ventilation. With Special Relation 

 to Illuminating, Heating, and Cooking by Gas. Including Scientiric 

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 By E. E. PERKINS. i2mo., cloth #1.25 



PERKINS AND STOWE. A New Guide to the Sheet-iron 



and Boiler Plate Roller : 



Containing a Series of Tables showing the Weight of Slabs and Piles 

 to Produce Boiler Plates, and of the Weight of Piles and the Sizes of 

 Bars to produce Sheet-iron ; the Thickness of the Bar Gauga 

 in decimals ; the Weight per foot, and the Thickness on the Bar or 

 Wire Gauge of the fractional parts of an inch; the Weight per 

 sheet, and the Thickness on the Wire Gauge of Sheet-iron of various 

 dimensions to weigh 112 Ibs. per bundle; and the conversion of 

 Short Weight into Long Weight, and Long Weight into Short. 

 Estimated and collected by G. H. PERKINS and J. G. STOWE. $2.501 



POWELI CHANCE HARRIS C The Principles of Glass 



Making. 



By HARRY J. POWELL, B. A. Together with Treatises on Crown and 

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 G. HARRIS, Asso. M. Inst. C. E. Illustrated i8mo. . $1.50 



PROCTOR. A Pocket-Book of Useful Tables and Formulae 



for Marine Engineers : 



By FRANK PROCTOR. Second Edition, Revised and Enlarged. 

 Full -bound pocket-book form ...... $1.50 



REGNAULT. Elements of Chemistry: 



By M. V. REGNAULT. Translated from the French by T. FORREST 

 BETTON, M. D., and edited, with Notes, by JAMES C. BOOTH, Melter 

 and Refiner U. S. Mint, and WILLIAM L. FABER, Metallurgist and 

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RICHARDS. Aluminium : 



Its History, Occurrence, Properties, Metallurgy and Applications, 

 including its Alloys. By JOSEPH W. RICHARDS, A. C., Chemist and 

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RIFFAULT, VERGNAUD, and TOUSSAINT. A Practical 



Treatise on the Manufacture of Colors for Painting : 

 Comprising the Origin, Definition, and Classification of Colors; the 

 Treatment of the Raw Materials ; the best Formulae and the Newest 

 Processes for the Preparation of every description of Pigment, and 

 the Necessary Apparatus and Directions for its Use; Dryers; th 

 Testing, Application, and Qualities of Paints, etc., etc. By MM. 

 RIFFAULT, VERGNAUD, and TOUSSAINT. Revised and Edited by M. 



