XXV1 
FIG. 
106. 
107. 
108. 
109. 
IIo. 
IIl. 
E22. 
Tis 
TT4, 
IIS. 
116. 
117. 
118. 
119. 
120. 
[21; 
nee, 
123. 
ILLUSTRATIONS 
PAGE 
Bones OF Fossir ANCESTORS OF THE HORSE, 
REPRESENTATION OF THE ANCESTOR OF THE HorsE DRAWN BY 
CuHaRLES R. KNIGHT UNDER THE DIRECTION OF PROFESSOR 
OSBORN. PERMISSION OF THE AMERICAN MUSEUM OF NATURAL 
History, 
Fossit REMAINS OF A PRIMITIVE BIRD iectmumeedsty 
GILL-CLEFTS OF A SHARK COMPARED WITH THOSE OF THE Em- 
BRYONIC CHICK AND RABBIT, 
JAWS OF AN EMBRYONIC WHALE, SHOWING RuaneeNteRy Teen, 
PROFILE RECONSTRUCTIONS OF THE SKULLS OF LIVING AND OF 
Fossit Men, 
LAMARCK, 1744-1820, : 
CHARLES DARWIN, 1809-1882, . 
AuGusT WEISMANN, BORN 1834, 
HuGo DE YRIES, 
BuFFON, 1707-1788, 
Erasmus Darwin, 1731-1802, 
GEOFFROY SAINT HILAIRE, 1772-1844, 
CHARLES DaRWIN, 1809-1882, . ‘ ‘ ‘5 7 
ALFRED RUSSEL WALLACE, BORN 1823, 7 
Tuomas Henry HuXLey, 1825-1895, 
Ernst HaECKEL, BORN 1834, ; - 
THE BIOLOGICAL STATION AT NAPLES, - é 
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360 
361 
362 
365 
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381 
400 
403 
412 
413 
. 416 
423 
428 
430° 
432 
445 
