NIKAIDO—Beet-Sugar Making and Its Chemical Control. 8vo. Pages XII + 354. 65 Illustrations.

NISSENSON—The Arrangement of Electrolytic Laboratories. 8vo. Pages 81. 52 Illustrations.

NOYES—Organic Chemistry for the Laboratory. 4th Edition, revised. 8vo. Pages XII + 293. 41 Illustrations.

NOYES AND MULLIKEN—Laboratory Experiments on Class Reactions and Identification of Organic Substances. 8vo. Pages 81.

PARSONS—The Chemistry and Literature of Beryllium. 8vo. Pages VI + 180.

PFANHAUSER—Production of Metallic Objects Electrolytically. 8vo. Pages 162. 100 Illustrations.

PHILLIPS—Chemical German. 2nd Edition. 8vo. Pages VIII + 252.

PHILLIPS—Method for the Analysis of Ores, Pig Iron and Steel. 2nd Edition. 8vo. Pages VIII + 170. 3 Illustrations.

PRANKE—Cyanamid (Manufacture, Chemistry and Uses). 8vo. Pages VI +112. 8 Figures.

PULSIFER—The Determination of Sulphur in Iron and Steel—With a Bibliography 1797-1921. 8vo. Pages VI + 160. 7 Illustrations.