TABLE OF CONTENTS 



Histological Studies. 



*XXII 

 *XXIII 

 *XXIV 



Parts of a Cell 

 Study of a Plant Cell 

 Study of Living Protoplasm- 

 XXV. Epithelial Tissue . 

 XXVI. Connective Tissue 

 XXVII. Muscular Tissue 

 XXVIII. Nervous Tissue . . 



Principles of Digestion. 



*XXIX. Principles of Osmosis 

 *XXX. An Enzyme .... 

 *XXXI. A Ferment Organism — Yeast 

 *XXXII. Structure of a Typical Gland 



-Amceba 



36 

 37 

 38 

 42 

 43 

 45 

 46 



47 

 49 

 50 

 51 



Organs and Processes of Digestion. 



*XXXIII. Dissection of Rat's Digestive Organs 53 



*XXXIV. The Teeth 55 



XXXV. Preparation of Digestive Fluids . . 57 



*XXXVI. Digestion of the Mouth — Saliva . 58 

 *XXXVII. Digestion »of the Stomach — Gastric 



Juice 60 



XXXVIII. Digestion of the Intestine — Pancreatin 



AND Bile 62 



XXXIX. Digestion of Mineral Salts . . .64 



XL. Tabulation of Nutrient Digestion . 65 



XLI. Microscopic Anatomy of Digestive Tract 66 



Blood. 



*XLII. General Properties of Blood 

 *XLIIL Study of Beef or Pig Blood 



67 

 69 



Circulation and the Blood System. 



*XLIV. Properties and Location of Arteries 



AND Veins 72 



*XLV. Circulation in a Frog's Foot . . 73 

 XLVI. Minute Structure of Arteries and 



Veins .74 



*XLVIL Structure of the Heart . . .75 



