ILLUSTRATIONS.
Reading edition
FIG. PAGE
1. Diagram of a Cell. (Drawn by Mr. E. P. Copeland from a sketch by the Author.) 5
2. Stylonychia. (Drawn by Mr. E. P. Copeland.) 9
3. Amœba. (Drawn by Mr. E. P. Copeland.) 11
4. Rotalia. (Drawn by Dr. A. L. Lawrence.) 12
5. Difflugia. (Drawn by Dr. A. L. Lawrence.) 17
6. Noctiluca. (Drawn by Dr. A. L. Lawrence.) 18
7. Gromia. (Drawn by Dr. A. L. Lawrence.) 21
8. Diagram Illustrating Mitosis. (Drawn by Mr. E. P. Copeland from a sketch by the Author.) 26
9. Diagram Illustrating the Maturation and Fertilization of the Ovum. (Drawn by Mr. E. P. Copeland from a sketch by the Author.) 30
10. Diagram Illustrating Segmentation and Gastrulation. (Drawn by Mr. E. P. Copeland from a sketch by the Author.) 34
11. Archæan North America. (From a drawing in Shaler’s “First Book in Geology.”) 84
12. Cretaceous North America. (From a drawing in Shaler’s “First Book in Geology.”) 86
13. Tertiary North America. (From a drawing in Shaler’s “First Book in Geology.”) 89
14. Genesis of Horse’s Feet. (Drawn by Mr. E. P. Copeland.) 112
15. Bipes, Cheirotes, and Snake. (From a drawing in Shaler’s “First Book in Geology.”) 114
16. Domesticated Pig and Wild Boar. (From Romanes’ “Darwin and After Darwin.”) 121
17. Tadpoles and Frog. (Drawn by Dr. A. L. Lawrence.) 175
18. Diagram of Development. (Drawn by Mr. B. H. Esterly from a sketch by the Author.) 183
19. Brain of Fish. (Drawn by Mr. B. H. Esterly from specimens of the Author.) 198
20. Brain of Reptile. (Drawn by Mr. B. H. Esterly from specimens of the Author.) 199
21. Brain of a Marsupial. (Drawn by Mr. B. H. Esterly from specimens of the Author.) 200
22. Brain of a Lemur. (Modified by Mr. B. H. Esterly from Flower.) 201
23. Ideal Sections of Brains. (Modified from Le Conte. Drawn by Dr. A. L. Lawrence from a sketch by the Author.) 202
24. Brain of Human Fœtus—Fish Phase. (Drawn by Mr. B. H. Esterly from specimens of the Author.) 204
25. Brain of Human Fœtus—Reptile Phase. (Drawn by Mr. B. H. Esterly from specimens of the Author.) 204
26. Brain of Human Fœtus—Marsupial Phase. Side View. (Drawn by Mr. B. H. Esterly from specimens of the Author.) 204
27. Brain of Human Fœtus—Marsupial Phase. Dorsal View. (Drawn by Mr. B. H. Esterly from specimens of the Author.) 205
COLORED PLATES
PLATE FACING PAGE
I. Wild Rock Pigeon and Pouter. (Drawn by Mr. J. L. Ridgway from specimens in the Smithsonian Institution.) Frontispiece
II. Butterflies. (Drawn by Miss L. Sullivan from specimens in the United States Bureau of Entomology.) 138
III. Caterpillar of Geometer Moth. (Drawn by Miss L. Sullivan from specimens in the United States Bureau of Entomology.) 142
V. Spider on Flower. (Drawn by Miss L. Sullivan from a plate in McCook’s “American Spiders.”) 144
VI. Elaps and Erythrolamprus. (Modified by Mr. J. L. Ridgway from a figure in Romanes’ “Darwin and After Darwin.”) 146
VII. Salamandra maculosa. (Drawn by Mr. J. L. Ridgway from specimens in the United States National Museum.) 148
VIII. Paradise Birds. (Drawn by Mr. J. L. Ridgway from specimens in the Smithsonian Institution.) 152
IX. Primrose Flowers. (Drawn by Miss L. Sullivan from specimens.) 162
X. Bee Fertilizing Flower. (Drawn by Miss L. Sullivan from specimens in the United States Bureau of Entomology.) 164
PLATES ENGRAVED IN BLACK AND WHITE
IV. Leaf-hoppers. (Drawn by Miss L. Sullivan from drawings collected by Dr. L. O. Howard.) 140
XI. Babies’ Grasping Power. (From a Photograph taken by Dr. Louis Robinson.) 192
XII. Brain of Man. (From Carus’ “The Soul of Man.”) 202