LEAD AND ITS COMPOUNDS. By Thos. Lambert, Technical and Consulting Chemist. Demy 8vo. 226 pp. Forty Illustrations. Price 7s. 6d. net. (Post free, 7s. 10d. home; 8s. 3d. abroad.)

NOTES ON LEAD ORES: Their Distribution and Properties. By Jas. Fairie, F.G.S. Crown 8vo. 64 pages. Price 1s. net. (Post free, 1s. 3d. home; 1s. 4d. abroad.)

(White Lead and Zinc White Paints, see p. 5..)