LIST OF ILLUSTRATIONS 
PORTRAITS 
CHarLES DARWIN - - - - Frontispiece 
Huco DE VRIES - - - To face page 121 
JosEPH GOTTLIEB KOLREUTER - - 2 ‘ 159 
GREGOR JoHANN MENDEL - - = ” 174 
FRaNcIs GALTON - - - - os 282 
DIAGRAMS \ 
PAGE PAGE 
Fig. 1 - 7 - 74 | Fig. 14. Mendelian Pro- 
Fig.2 - - - 84 portions in Maize - 
Fig.3 - - - 87 To face 186 
Fig. 4 - - 89 | Fig. 15. Inheritance in 
Fig. 5 - - go Primula - To face 194 
Figs. 6 and 7 - - 94 | Fig. 16 - - - 212 
Fig. 8 - - - 96 | Figs. 17 and 18 - - 241 
Fig.9 - - - 103 | Figs. 19to26 - - 249 
Fig. 10 - is - 126] Figs.27to31 - - 252 
Fig. 11 - - - 138 | Figs.32t037 - - 259 
Fig. 12. Mutation in Figs. 38 to 42 - - 260 
Cinothera -To face 143 | Fig. 43 - - - 262 
Fig. 13. Trifolium Pra- Figs. 44 and 45 - - 266 
tense Quinquefolium Fig. 46 - . - 268 
To face 150 | Fig. 47- - - 272 
