LIST OF ILLUSTRATIONS 



BY CHAPTERS. 



General the Right Hon. Louis Botha, P.C. (Photograph by Fred Coop 

 of Pretoria) Frontispiece 



CHAPTER I. 



FIO. PAGE 



i. A field of maize on the demonstration farms of Messrs. John Fowler 



& Co. (Leeds), Ltd., at Vereeniging 2 



2. In a maize field in the Transvaal Bush-veld (Tzaneen, Zoutpansberg 



District) , 



3. Fields of maize. Government Experimenl Farm, Potchefstroom, Trans- 



vaal. (Photograph by Fred Coop of Pretoria) .... 7 



4. Maize fields at Vereeniging, on the High-veld of the Transvaal . . 8 



CHAPTER II. 



5. Effect of hail on the leaves of the maize plant 34 



6. Effect of hail on the stem and leaves of the maize plant 35 



7. Grains which have been fertilized but not fully filled with starch, pro- 



bably o.ving to drought . 38 



8. Grains cracked from exposure to unfavourable weather conditions . 38 

 g. Grains cracked from exposure to unfavourable weather conditions . 39 



CHAPTER IV. 



10. Teosinte, Euchlcena mexicana L., a near relative of the maize plant, 



and the only species with which it is known to hybridize . . 66 



ir. Maize plants in the Transvaal ........ 67 



12. Flowering plants of maize (Zea Mays L.). (Photograph by Dr. W. 



Macdonald) 68 



r3. Plant cells, as seen under a high-power microscope, showing strands 

 of protoplasm, nucleus, nucleolus, etc. (From Sir F. Darwin's 

 Elements of Botany) ......... 69 



14. Transverse section through a leaf (of hellebore), showing tissues and 



cells. (From Sir F. Darwin's Elements of Botany) ... 69 



15. Embryo and endosperm of maize ....... 70 



r6. Germinating maize grains ......... 71 



17. Maize grains planted upside down ... . ... 73 



18. Maize seedlings at two stages of growth ...... 74 



ig. Part of a transverse section of maize stem. (From Cavers' Practical 



Botany) 76 



20. Transverse section of vascular bundle of maize. (From do.) . . 76 



21. Part of a radial longitudinal section of maize stem. I From do.) . 77 



22. Part of a tangential longitudinal section of maize stem. (From do.) . 77 



23. Base of young maize plant ......... 79 



24. Bisexual tassels of sucker-shoots, bearing small round grains . . 80 



25. Leaf sheath and base of blade ........ 81 



26. Leaf sheath 82 



27. Three stomata with surrounding epidermic cells. (From Sir F. Darwin's 



Elements of Botany) ......... 83 



28. Tassel of Odessa maize ......■•• 84 



xxix 



