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$PERKINS AND STOWE.--A New Guide to the Sheet-iron and Boiler
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$POWELL--CHANCE--HARRIS.--The Principles of Glass Making.$

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$PROTEAUX.--Practical Guide for the Manufacture of Paper and
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$PROCTOR.--A Pocket-Book of Useful Tables and Formulae for Marine
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By FRANK PROCTOR. Second Edition, Revised and Enlarged. Full bound
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$REGNAULT.--Elements of Chemistry.$

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$RIFFAULT, VERGNAUD, and TOUSSAINT.--A Practical Treatise on the
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Inc