VI ANALYSIS OF THE CONTENTS. 



CHAPTER II. 



GENERAL STRUCTURE. 



Page 



HEAD. General form Bill Organs of sense Eyes, and 

 their peculiarities Ears . . . . 49 51 



NKCK. Form Articulation Motions Action and uses 

 Superiority of natural models . . . SI 54 



Vouv. General Form Spine Sternum Shoulder Pelvis 

 Tail . . . . 5456 



\Vivr.-i. Parts of the wing Their articulation Point of at- 

 tachment Wings for flying Wings for balancing The 

 apteryx . . . 5559 



FEKT. Their various uses Habits which they indicate 

 Parts of the feet Marks of using the feet Normal feet 5963 



CLOSING THK TOES. Effect of binding the joints Difference 

 between mammalia and birds Flexible perches Perching 

 on rocks Position in perching . . 6368 



ALIMENTARY SYSTEM. General structure Vegetable feed- 

 ers Animal feeders Endurance of hunger Miscella- 

 neous feeders Habits connected with feeding . 6876 



CIRCULATION AND RESPIRATION. System of blood-vessels 

 Rapidity of circulation Provisions in breathing Air- 

 cells Contrast of birds and mammalia . 7680 



CHAPTER III. 



EXTERNAL PARTS. 



KINDS of surface . . " . . 81 



HORVY SURFACE. Texture Form Colour Changes 82 



NAKED SKIN. Where situated Cere Lore Comb Wat- 

 tles Garter . . . . 8284 

 FEATHERS. Name of the groups Clothing feathers on the 

 head on the body Upper and under surface Arrange- 

 ment Texture Structure Down Preen ing Feathers 

 of Right Distinctions of the quills Of the tail Coverts- 

 Imperfect wings Supplemental feathers Their changes 

 The blooming of the feathered tribes . . 8296 



CHAPTER IV. 



SKELETON. 



SKELETON OF JER-FALCOV General proportions . 97100 

 SPINE. Vertebrae of the neck The back, &c. . 100 



