No. OF 
FIGURE. 
135, 1552 
136 
137 
138 
139 
LIST OF AUTHORITIES. 
AUTHOR FROM No. OF 
WHOM TAKEN. FIGURE. 
Wood. 140 
Balfour. 141 
“ 142 
s 143 
[11 
GEOLOG 
Dana. | 152 
น 153 
a 154 
" 155 
xe 156 
a 157 
Owen. 158 
Carpenter. | 159 
EMBRYOLOGY 
Haeckel. | او‎ 
E | 172 
jj | 173 
w | 174 
2 175 
Kölliker (slightly 176 
altered). 177 
Kölliker. 178 
k 179 
es 180 
E 181 
AGN TH POO P'O P O CS X. 
Tinxiey. 190 
7 191 
=” 192 
2 193 
8 194 
Ç 195 
[11 196 
