LIST OF ILLUSTRATIONS



PORTRAIT OF AUTHOR
MAP SHOWING THE 1000-FATHOM LINE
1. DIAGRAM OF VARIATIONS OF LACERTA MURALIS
2. " VARIATION OF LIZARDS
3. " VARIATION OF WINGS AND TAIL OF BIRDS
4. " VARIATION OF DOLICHONYX ORYZIVORUS
5. " VARIATION OF AGELAEUS PHOENICEUS
6. " VARIATION OF CARDINALIS VIRGINIANUS
7. " VARIATION OF TARSUS AND TOES
8. " VARIATION OF BIRDS IN LEYDEN MUSEUM
9. " VARIATION OF ICTERUS BALTIMORE
10. " VARIATION OF AGELAEUS PHOENICEUS
11. " CURVES OF VARIATION
12. " VARIATION OF CARDINALIS VIRGINIANUS
13. " VARIATION OF SCIURUS CAROLINENSIS
14. " VARIATION OF SKULLS OF WOLF
15. " VARIATION OF SKULLS OF URSUS LABIATUS
16. " VARIATION OF SKULLS OF SUS CRISTATUS
17. PRIMULA VERIS (Cowslip). From Darwin's _Forms of Flowers_
18. GAZELLA SOEMMERRINGI (to show recognition marks)
19. RECOGNITION MARKS OF AFRICAN PLOVERS