By THE SAME AUTHOR

THE CHEMISTRY AND TECHNOLOGY OF PAINTS

Second Edition, Revised and Enlarged

6½ x 9½. 366 pages. Illustrated. $4.50

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MATERIALS FOR PERMANENT PAINTING

A manual for manufacturers, art dealers, artists and collectors.

5 x 7½. 208 pages. Illustrated. $2.50

D. VAN NOSTRAND COMPANY