Part 13

=HYDE, FREDERIC S. Solvents, Oils, Gums, Waxes and Allied Substances.= 5-1/4 x 8-1/2 cloth. 182 pp. =net, $2.00=

=INGLE, HERBERT. Manual of Agricultural Chemistry.= Illustrated. 8vo. cloth. 388 pp. =net, $3.00=

=JOHNSTON, J. F. W. Elements of Agricultural Chemistry.= Revised and rewritten by Charles A. Cameron and C. M. Aikman. Nineteenth Edition. Illustrated. 12mo. cloth. 502 pp. =$2.60=

=JONES, HARRY C. A New Era in Chemistry.= Some of the more important developments in general chemistry during the last quarter of a century. Illustrated. 12mo. cloth. 336 pp. =net, $2.00=

=KEMBLE, W. F., and UNDERHILL, C. R. The Periodic Law and the Hydrogen Spectrum.= Illustrated. 8vo. paper. 16 pp. =net, $0.50=

=KERSHAW, J. B. C. Fuel, Water, and Gas Analysis, for Steam Users.= 50 ill. 8vo. cloth. 178 pp. =net, $2.50=

=—— Electro-Thermal Methods of Iron and Steel Production.= With an introduction by Dr. J. A. Fleming, F.R.S. 50 tables, 92 illustrations. 5-1/2 x 8-1/4. cloth. 262 pp. =net, $3.00=

=KNOX, JOSEPH. Physico-chemical Calculations.= 12mo. cloth. 196 pp. =net, $1.00=

=——Fixation of Atmospheric Nitrogen.= Illustrated. 5 x 7-1/2. cloth. 120 pp. (Van Nostrand’s Chemical Monographs.) =net, $0.75=

=KOLLER, T. Cosmetics.= A handbook of the manufacture, employment and testing of all cosmetic materials and cosmetic specialties. Translated from the German by Charles Salter. 8vo. cloth. 262 pp. =net, $2.50=

=—— Utilization of Waste Products.= A treatise on the rational utilization, recovery and treatment of waste products of all kinds. Second Revised and Enlarged Edition. 22 illustrations. 5-3/4 x 8-3/4. cloth. 336 pp. =net, $3.00=

=KREMANN, R. The Application of Physico-chemical Theory to Technical Processes and Manufacturing Methods.= Authorized translation by Harold E. Potts, M.Sc. 35 diagrams. 8vo. cloth. 215 pp. =net, $2.50=

=KRETSCHMAR, KARL. Yarn and Warp Sizing in All Its Branches.= Translated from the German by C. Salter. 122 illus. 8vo. cloth. 192 pp. =net, $4.00=

=LAMBORN, L. L. Modern Soaps, Candles and Glycerin.= 224 illustrations. 8vo. cloth. 700 pp. =net, $7.50=

=—— Cotton Seed Products.= 79 illus. 8vo. cloth. 253 pp. =net, $3.00=

=LASSAR-COHN. Introduction to Modern Scientific Chemistry.= In the form of popular lectures suited for University Extension students and general readers. Translated from the Second German Edition by M. M. Pattison Muir. Illus. 12mo. cloth. 356 pp. =$2.00=

=LETTS, E. A. Some Fundamental Problems in Chemistry: Old and New.= 44 illustrations. 8vo. cloth. 236 pp. =net, $2.00=

=LUNGE, GEORGE. Technical Methods of Chemical Analysis.= Translated from the Second German Edition by Charles A. Keane, with the collaboration of eminent experts. Complete in three volumes. Six parts. 448 illustrations. 6-1/2 x 9-1/2. cloth. 3494 pp. =net, $48.00= Vol. I. (in two parts). 201 illustrations. 6-1/2 x 9-1/2. cloth. 1024 pp. =net, $15.00= Vol. II. (in two parts). 149 illustrations. 6-1/2 x 9-1/2. cloth. 1294 pp. =net, $18.00= Vol. III. (in two parts). 98 illustrations. 6-1/2 x 9-1/2. cloth. 1174 pp. =net, $18.00=

=—— Technical Chemists’ Handbook.= Tables and methods of analysis for manufacturers of inorganic chemical products. Illus. 12mo. leather. 276 pp. =net, $3.50=

=—— Coal, Tar and Ammonia.= Fourth and Enlarged Edition. In two volumes, not sold separately. 305 illustrations. 8vo. cloth. 1210 pp. =net, $15.00=

=—— The Manufacture of Sulphuric Acid and Alkali.= A theoretical and practical treatise. Vol. I. Sulphuric Acid. Fourth Edition, enlarged. In three parts, not sold separately. 543 illustrations. 8vo. cloth. 1665 pp. =net, $18.00= Vol. II. Sulphate of Soda, Hydrochloric Acid, Leblanc Soda. Third Edition, much enlarged. In two parts, not sold separately. 335 illustrations. 8vo. cloth. 1044 pp. =net, $15.00= Vol. III. Ammonia Soda. Various Processes of Alkali-making, and the Chlorine Industry. 181 illustrations. 8vo. cloth. 784 pp. =net, $10.00= Vol. IV. Electrolytical Methods. In Press.

=—— Technical Gas Analysis.= 143 illustrations. 6 x 9. cloth. 422 pp. =net, $4.00=

=McINTOSH, JOHN G. The Manufacture of Varnish and Kindred Industries.= Illus. 8vo. cloth. In 3 volumes. Vol. I. Oil Crushing, Refining and Boiling; Manufacture of Linoleum; Printing and Lithographic Inks; India Rubber Substitutes. 29 illus. 160 pp. =net, $3.50= Vol. II. Varnish Materials and Oil Varnish Making. 66 illus. 216 pp. =net, $4.00= Vol. III. Spirit Varnishes and Varnish Materials. 64 illus. 492 pp. =net, $4.50=

=MARTIN, G. Triumphs and Wonders of Modern Chemistry.= A popular treatise on modern chemistry and its marvels written in non-technical language. 76 illustrations. 12mo. cloth. 358 pp. =net, $2.00=

=MELICK, CHARLES W. Dairy Laboratory Guide.= 52 illustrations. 12mo. cloth. 135 pp. =net, $1.25=

=MERCK, E. Chemical Reagents: Their Purity and Tests.= Second Edition, revised. 6 x 9. cloth. 210 pp. =$1.00=

=MIERZINSKI, S. The Waterproofing of Fabrics.= Translated from the German by A. Morris and H. Robson. Second Edition, revised and enlarged. 29 illustrations. 5 x 7-1/2. 140 pp. =net, $2.50=

=MITCHELL, C. A. Mineral and Aerated Waters.= 111 illustrations. 8vo. cloth. 244 pp. =net, $3.00=