LIST OF ILLUSTRATIONS 



FIG. PAGE 



Arch.eopteryx. (From a photograph of original specimen) 



Frontispiece 



I. Domestic Pigeons) (From drawings made for the Author by 



3. Domestic Fowls J R. E. Holding) ... 36, 33 



3. Gallus Bankiva, The Jungle-Fowl. (Photographed from 



Nature, and lent by W. E. Hoyle, Esq.) .... 34 



4 & 5. Dentalium and Lingula (after Nicholson) . . 58 



6. Phenacodus (after Cope) 64 



7. Flying Reptile, Diagram. (From a drawing by the Author) 66 



8. Ascidian and Frog Tadpoles (after Lankester) . . 80 



9. Prawn, Development of. (From a drawing by the Author, 



after Fritz Muller) 81 



10. Barnacle, Development of. (From a drawing by the Author, 



after Spence Bate) ... ... 83 



11. Sacculina, Development and Degeneration of. (From a 



drawing by the Author: A, B, and C after Delage; D 

 from Nature) 83 



12. Flounder, Young and Adult Specimens. (From a drawing 



by the Author: A and B after Cunningham; C after 

 Buckland and Couch) 86 



13. Crab, Young and Adult Specimens. (From a drawing by the 



Author: A after Weld on; B after Claus ; C after Bell) go 



14. Orbitolites and Peneroplis (From a drawing by the 



Author, after Brady and Carpenter) ... 93 



15. Frog and Tadpoles. (From a drawing by the Author from 



Nature) 100 



16. Hylodes, Young and Adult Specimens. (From a drawing 



by the Author, after Brehm) 101 



17. Eyes of Solen, Haliotis, Patella and Fissurella. 



(From a drawing by the Author) 108 



18. Diagram of Eyes of Patella, Haliotis and Fissu- 



rella, (From a drawing by the Author) . . . .109 



