LIST OF ILLUSTRATIONS 



FIG. 



79. Diagram to illustrate segregation of characters . 



80. Somatic variation in pericarp colour 



81. Inheritance of size characters : P, plant generation 



82. Inheritance of size characters : Fj plant generation 



83. Inheritance of row numbers 



84. Inheritance of row numbers 



85. Fasciated and lobed ears 



86. Laterally branched ear 



87. A, Desirable shape of grain ; B, Device for standardizing grams 



88. Selecting seed maize : the final selection . . 



89. Selecting the best ears from the bulk plot . 



90. A new breed of maize in process of development. (Courtesy of the 



South African Railways Publicity Department) . . . . 



PAGE 

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rgo 



195-6 

 196-7 

 199 

 203 

 206 

 207 

 217 

 223 

 227 



232 



CHAPTER VI' 



91. Exhibit of the Division of Botany, Transvaal Department of Agri- 



culture, at the First South African Maize and Citrus Show, 

 Johannesburg, 1910 ......... 236 



92. Maize Exhibits at the First South African Maize and Citrus Show, 



Johannesburg, igio ......... 248 



93. American students learning to judge maize . ..... 270 



CHAPTER VII. 



94. A, Hickory King, unusually good ear, but sulci too wide ; B, Ladv- 



smith ............ 285 



95. Hickory King ; A, defective tip ; B, a good average ear . . . 287 



96. Variation in ears of Hickory King ....... 288 



97. Ladysmith Hickory ; a promising but unfixed cross-bred grown at 



Ladysmith, Natal .......... 290 



98. 12-row Hickory or " Hickory Horsetooth" ...... 2go 



99. Salisbury White .......... 292 



100. Noodsberg Horsetooth ; a promising, unfixed cross-bred . . . 292 



101. Mercer ............ 293 



102. Virginia Horsetooth .......... 294 



103. A, grains of Mercer; B, surplus crop after filling Mr. Mercer's barn 296 



104. 10-row Hickory or " Louisiana" ....... 297 



105. Two prize ears of 10-row Hickory, at the First South African Maize 



Show. A, grown by Reynolds Bros. ; B, grown by Hutchinson 



and Shaw (Val Station, Transvaal) 298 



106. Iowa Silver-mine, a prize ear ........ 299 



107. Two prize ears of Iowa Silver-mine, at the First South African Maize 



Show. A, grown by W. A. McLaren (Vereeniging) ; B, grown by 



M. Geerdts (Boksburg, Transvaal) ...... 300 



108. Boone County ........... 3or 



log. Variation in types of Ladysmith ........ 302 



no. Natal White Horsetooth ; short type 303 



in. Natal White Horsetooth x Hickory King ...... 304 



112. A, Eureka; B, Chester County 305 



113. A, Golden Beauty ; B, Yellow Hogan 307 



114. Yellow Horsetooth or German Yellow ...... 30S 



115. Rcid Yellow Dent 3 r ° 



116. Minnesota Early . .......... 3 11 



117. Star Learning ........... 3 11 



118. Golden Eagle, as grown in Rhodesia ....... 3 T 3 



119. Cango, North Dakota, and Wills Gehu 3*8 



120. A, New England 8-row ; B, Improved Yellow Botman . . . 3 Z 9 



121. A, Gillespie yellow flint (Red-cob); grown by W. Gillespie, Zand- 



spruit, Transvaal ......... 3 21 



