Xll CONTENTS. 



PAGE 



Gastric Digestion in Special Diseases. 



1. Gastric Digestion in Fevers 172 



2. Gastric Digestion in Dyspepsia 173 



3. Gastric Digestion in other Diseases of the Stomach . . 176 



SECT. 16. DIRECTIONS FOR LABORATORY WORK CONNECTED WITH GASTRIC DIGESTION 178 



1. Determination of the Specific Gravity of Gastric Juice . 178 



2. Determination of Total Solids and fixed Mineral Matters . 178 



3. Preparation of an Artificial Gastric Juice .... 178 



4. Determination of the degree of Acidity of the Gastric Juice 



or of the filtered Contents of the Stomach . . . .178 



5. Determination of the presence of free Hydrochloric Acid, by 

 Colour Tests 178 



6. Determination of the Amount of free Hydrochloric Acid 

 present (Kichet's Modification of Schmidt's Method) . . 180 



7. Determination of the proportion of Acids soluble in water 



and ether 181 



8. Determination of the Peptic Activity of different samples of 

 Pepsin or of Solutions containing Pepsin .... 182 



9. Experiments on Pepsinogen and Pepsin ; on Eennet Zymo- 



gen and Kennet Ferment 186 



CHAPTER III. 



THE PANCREAS IN ITS RELATION TO THE PANCREATIC JUICE. 

 PANCREATIC DIGESTION! 



SECT. 1. INTRODUCTORY OBSERVATIONS CONCERNING SOME POINTS IN THE ANATOMY 



AND PHYSIOLOGY OF THE PANCREAS 188 



Minute Structure of the Pancreas 189 



Vascular and Nervous Supply of the Pancreas 191 



SECT. 2. THE SECRETION OF PANCREATIC JUICE 191 



Mode of establishing Pancreatic Fistulas 192 



General Phenomena of the Pancreatic Secretion .... 195 

 Changes in the appearance of the Secretory Cells which accompany 



Secretion. Concomitant vascular changes 197 



SECT. 3. THE PHYSICAL AND CHEMICAL CHARACTERS OF THE PANCREATIC JUICE . 199 



SECT. 4. THE PANCREATIC ENZYMES CONSIDERED IN DETAIL .... 202 



1. The Diastatic Enzyme 203 



Preparation of active Solutions containing the Enzymes of the 



Pancreas 204 



Degree of Activity and Mode of Action of a Solution of the Diastatic 



Ferment 205 



Is there a Zymogen of the Diastatic Ferment ? 206 



Attempts to isolate the Diastatic Ferment 208 



The Chemical Composition of the Diastatic Enzyme .... 210 



