CONTENTS 



CHAPTER I 



PAGE 



Introductory Remarks ..... 1 



Use of term mammals, 1 ; Characters of mammals, 2 ; De- 

 velopment of young, 3 ; Size of mammals, 4 ; Uses and products 

 of mammals, 4. 



CHAPTER II 



General Anatomical Characters .... 7 



I. Tegumentary Structures .... 7 



Hair, 7 ; Colour, 8 ; Scales, etc., 11 : Nails, claws, and 

 hoofs, 12 ; Odour-secreting glands, 12. 



II. Dental System. . . . . .13 



Teeth, 13 ; Structure of teeth, 13 ; Development of teeth, 

 15 ; Forms of teeth, 17 ; Succession of teeth, 19 ; Arrangement, 

 homologies, and notation of teeth, 21 ; Dental formulae, 25 ; 

 Modifications of teeth in relation to function, 28 ; Taxonomy, 

 30 ; Trituberculism, 30. 



III. The Skeleton ...... 33 



Definition, 33 ; Axial skeleton, 34 ; Skull, 34 ; Vertebral 

 column, 39 ; Cervical vertebra;, 41 ; Dorsal vertebra;, 42 ; 

 Lumbar vertebra;, 42 ; Sacral vertebra;, 43 ; Caudal vertebra;, 

 43 ; Sternum, 44 ; Ribs, 44 ; Appendicular skeleton, 46 ; 

 Anterior limb, 46 ; Shoulder-girdle, 46 ; Brachium and Ante- 

 brachium, 47 ; Manus, 48 ; Carpus, 48 ; Metacarpus and Phal- 

 anges, 49 ; Posterior limb, 50 ; Pelvic girdle, 50 ; Thigh and 

 Leg, 51 ; Pes, 52. 



IV. The Digestive System . . . . .53 



General considerations, 53 ; Mouth, 54 ; Salivary glands. 

 55 ; Stomach, 57 ; Intestinal canal, 59 ; Liver, 60. 



V. Circulatory, Absorbent, Respiratory, and Urinary Systems 63 



Blood, 63 ; Heart, 63 ; Lymphatic vessels, 65 ; Ductless 

 glands, 65 ; Xostrils, 66 ; Trachea, 67 ; Larynx, 67 ; Diaphragm, 

 67 ; Lungs, 68 ; Air-sacs, 68 ; Urinary Organs, 69 ; Bladder, 69. 



