~Van Nostrand's Chemical Annual.~ Edited by John C. Olsen. A handbook of useful data for analytical manufacturing and investigating chemists and chemical students. Fourth Issue, enlarged. 5 x 7-1/2. Flexible fabrikoid. 785 pp. New York, 1918. ~$3.00~ ~Watt, A.~ Art of Soapmaking. A practical handbook of the manufacture of hard and soft soaps, toilet soaps, etc. Seventh Edition, revised and enlarged. 43 illustrations. 5-1/4 x 7-1/2. Cloth. 323 pp. London, 1918. ~$4.00~ ~Wright, C. R. A.~ Animal and Vegetable Fixed Oils, Fats, Butters, and Waxes: Their Preparation and Properties, and the Manufacture Therefrom of Candles, Soaps, and Other Products. Third Edition, revised and greatly enlarged by C. Ainsworth Mitchell. 185 illustrations, 3 plates. 6 x 9. Cloth. 953 pp. London, 1921. ~$16.50~