MANUAL OF AGRICULTURAL CHEMISTRY. By Herbert Ingle, F.I.C., Late Lecturer on Agricultural Chemistry, the Leeds University; Lecturer in the Victoria University. Second Edition, with additional matter relating to Tropical Agriculture, etc. 438 pp. 11 Illustrations. Demy 8vo. Price 7s. 6d. net. (Post free, 8s. home; 8s. 6d. abroad.)

CHEMICAL MANURES. Translated from the French of J. Fritsch. Demy 8vo. Illustrated. 340 pp. Price 10s. 6d. net. (Post free, 11s. home; 11s. 6d. abroad.)

(See also Bone Products and Manures, p. 8.)