viii PREFACE 



chapter on maize and maize products as stock food, the 

 author has drawn largely upon Feeds and Feeding, by 

 Professor W. A. Henry, from whom he once enjoyed 

 the privilege of a valuable course of lectures. Much 

 of the information on insect-pests has been furnished 

 by his friend, Mr. C. W. Mally, Government Entomo- 

 logist, Cape Town, whose work in investigating and 

 fighting the pests of the maize crop, while stationed 

 at Grahamstown, is well known and highly spoken of 

 by Eastern Province farmers. Much of the infor- 

 mation on the use of maize-harvesting machinery in 

 America, has been taken from a bulletin specially 

 dealing with the subject by Mr. Zintheo, of the U.S. 

 Department of Agriculture. Much valuable informa- 

 tion has been obtained from the writings of Professors 

 T. F. Hunt, C. G. Hopkins, Bateson, and Punnett, 

 Dr. E. M. East, and Dr. G. H. Shull. To many kind 

 friends and correspondents the author is indebted for 

 the native names in use in different parts of South 

 Africa ; and to Mr. R. T. A. Innes, Director of the 

 Union Observatory, Johannesburg, for much valuable 

 information on climatology. 



The author's warmest thanks are due to his sister- 

 in-law, Miss Florence Bolton, A.B. (Stanford), and to 

 his wife, for patient and careful revision of manuscripts 

 and proofs, without which it would have been impossible 

 for him to have prepared the book for publication in the 

 limited time at his disposal. He is also indebted to 

 Mr. H. R. Mallett of Cambridge, for the preparation 

 and revision of the Index at the last moment, and to 

 Miss Pate of Cambridge and her staff, for their care 

 and accuracy in copying the tables and bibliographical 

 list, and typing the manuscript, and also for reading 

 some of the proofs. 



The author desires to express his thanks to those 

 who have supplied photographs and blocks, or who 



