Directions for placing the Plates in mL I, part L 
The Vignette to part I. represents the Platypus or Duck-bill in 
different views. — Plate containing the outline of the Skull to 
front p. vii of the Introduction. 
Plate 
I to face page 
2 . 
3 
4 
6 
6 
1 
8 
9 
lO 
II 
12 
13 
15 
16 
17 
18 
19 
20 
21 
22 
23 
24 
26 
27 
28 
29 
30 
3^ 
3^ 
33 
34 
35 
I 
5 
7 
10 
12 
12 
13 
H 
16 
17 
20 
22 
24 
25 
28 
30 
34 
38 
40 
43 
44 
54 
5<5 
59 
61 
65 
67 
73 
81 
92 
93 
94 
96 
99 
103 
Plate 36 to face page 104 
37 
38 
39 
40 
41 
42 
43 
44 
45 
46 
47 
48 
49 
50 
51 
52 
53 
54 
55 
56 
57 
58 
59 
60 
61 
62 
<53 
64 
65 
66 
67 
68 
68* 
69 
106 
116 
120 
123 
139 
140 
143 
144 
148 
156 
159 
162 
167 
169 
170 
179 
173 
^75 
180 
181 
188 
189 
193 
198 
202 
207 
2X2 
219 
226 
229 
230 
234 
237 
244 
