CONTENTS. 



PAGE 



Prefatory Note by the Rt. Hon. Sir Arthur S. T. Griffith-Boscawen, 



M.P., Minister of Agriculture and Fisheries - - - j 



Introduction ^ 



Chapter : — 



I. — The Soil and its Effect on Plant Growth - - - - 7 



II. — Plant Breeding --------- 29 



III. — Plant Physiology 40 



IV. — Fruit Growing and Preserving ------ 51 



V. — Plant Diseases - - -- -. . - . 5^ 



VI. — Animal Husbandry --.-.--. g^ 

 VII. — ^Animal Breeding - - - - - - - -114 



VIII. — Dairying ---- 122 



IX. — Animal Diseases - - - - - - . 135 



X. — -Farming as a Business ------- i^j 



Appendix : — ■ 



I. — Research Institutions and Advisory Centres in England and 



Wales - - - 155 



II. — Titles of Papers published by Research Workers in 1920 and 



1921 - - - - 156 



Index to Main Subiects of Research ---..- 166 



(5)17317 Wt 31604—141/1368 1000 4/22 



