Tl ANALYSIS OF THE CONTENTS. 



CHAPTER II. 



GENERAL STRUCTURE. 



Page 



Head.— General form— BUI— Organs of sense— Eyes, and 

 their peculiarities— Ears . . . . 49 — 51 



Keck.— Form— Articulation— Motions— Action and uses- 

 Superiority of natural models . . . 51—54 



?ODY.— General Form— Spine— Sternum— Shoulder— Pelvis 

 —Tail ..... 54—56 



WixGs. — Parts of the wing— Their articulation— Point of at- 

 tachment — Wings for flying— Wings for balancing— The 

 apteryx ..... 56—59 



Feet.— Their various uses— Habits which they indicate— 

 Parts of the feet— Marks of using the feet— Normal feet 59—63 



Closixg the Toes.— Effect of binding the joints— Difference 

 between mammalia and birds — Rexible perches— Perching 

 on rocks — Position in perching . . 63 — 68 



Alimentary System. — General structure — Vegetable feed- 

 ers — Animal feeders — Endurance of hunger — Miscella- 

 neous feeders — Habits connected with feeding . 68 — 76 

 CiRCULATiox AXD Respiratiox. — Systcm of blood-vcssels 

 — Rapidity- of circulation — Provisions in breathing — Air- 

 ceUs — Contrast of birds and mammalia . 76 — 80 



CHAPTER III. 

 EXTERNAL PARTS. 



Kinds of surface .... 81 



Horny srRFACE.-Texture— Form— Colour— Qianges 82 



Naked skix.— Where situated— Cere— Lore— Comb— Wat- 

 tles— Garter .... 82—84 

 Feathers. — Name of the groups — Clothing feathers — on the 

 head — on the body — Upper and under surface — Arraiige- 

 ment — Texture — Structure— Down — Preening — Feathers 

 of Flight— Distinctions of the quills— Of the tail— Coverts- 

 Imperfect wings — Supplemental feathers — Their changes 

 —The blooming of the feathered tribes . . 82—96 



CHAPTER IV. 



SKELETON. 



Skeleton of Jer-palcon — General proportions . 97 — 100 

 SpixE.-VertebrEE of the neck— The back, &c. . 100 



