TY  - BOOK
AU  - Knowles,Frank
AU  - Watkins,Job Elphin
TI  - A practical course in agricultural chemistry,: for senior students of agriculture, dairying, horticulture and poultry husbandry 
U1  - 630.24 20
PY  - 1947///
CY  - London
PB  - Macmillan
KW  - Agricultural chemistry
N1  - 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
ER  -