DRAWINGS IN THE TEXT 



FIG. 



1. A Typical Feather 



2. Structure and Development of the Feather 



3. Different kinds of Feathers .... 



4. A Mesoptile pushing out its Predecessor 



5. Thigh-bone of an Ostrich .... 



6. Breastbone and Pectoral Girdle of a Penguin 



7. 8. Breastbone and Pectoral Girdle of Bird and 



comparfd 



9. Comparison of Bird's Wing and Monkly's Arm 



10. Pelvic Girdle and Sacral Region of Ostrich 



11. Fowl's Hind-Leg 



12. Comparison of Bird's Leg and Ape's Leg 



13. Dorsal and Ventral View of a Bird's Skull 



14. Side View of Bird's Skull 



15. Cat's Skull for comparison with Bird's 



16. Dorsal Vertebra of an Ostrtch 



17. Wing of a Bird showing Feathers and Bones 



18. The so-called " Flying Dragons " 



19. Flight of Heron 



20. Bat's Wing and Skeleton . 



21. Skeleton of Bat, Creeping 



22. Types of Beak 



23. Types of Feet in Birds 



24. Dissection jf Pigeon's Food-canal, etc. 



25. Food-canal of an Eagle . 



26. Cross-section through Bird's Intestine 



27. Brain of a Pigeon .... 



Api 



TAf.E 



18 

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 24 



47 

 SO 



52 

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 59 

 61 



63 

 64 



65 

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76 

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83 

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 116 



