A practical course in agricultural chemistry, for senior students of agriculture, dairying, horticulture and poultry husbandry /
Frank Knowles and J. Elphin Watkin, with a foreword by Sir John Russell.
- 2d edition.
- London : Macmillan, 1947.
- xi, 216 p. : ill. ; 22 cm.
Contents I. Soils II. Fertilizers and Manures III. Plant and Animal Biochemistry IV. Feeding Stuffs V. Dairy Products VI. The Chemical Examination of Water VII. Insecticides and Fungicides