XIV 



CONTENTS. 



SECTION 



128. Diffusion of Gases within the Lungs, 



129. Exchange of Gases between the Blood and Air 



130. Dissociation of Gases, 



131. Cutaneous Respiration, 



132. Internal Respiration, . 



133. Respiration in a Closed Space, 



134. Dyspnua and Asphyxia, 



135. Respiration of Foreign Gases, 



136. Accidental Impurities of the Air, 



137. Ventilation of Rooms, 



138. Formation of Mucus, . 



139. Action of the Atmospheric Pressure, 



140. Comparative and Historical, . 



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 201 

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 205 



IV. PHYSIOLOGY OF DIGESTION. 



141. The Mouth and its Glands, . 



142. The Salivary Glands, . 



143. Histological Changes in Salivary Glands, 



144. The Nerves of the Salivary Glands, . 



145. Action of Nerves on the Salivary Secretion, 



146. The Saliva of the Individual Glands, 



147. The Mixed Saliva in the Mouth, 



148. Physiological Action of Saliva, 



149. Tests for Sugar, 



150. Quantitative Estimation of Sugar, 



151. Mechanism of the Digestive Apparatus, 



152. Introduction of the Food, 



153. The Movements of Mastication, 



154. Structure and Development of the Teeth, 



155. Movements of the Tongue, 



156. Deglutition, .... 



157. Movements of the Stomach, 



158. Vomiting, .... 



159. Movements of the Intestine, . 



160. Excretion of Faecal Matter, 



161. Conditions influencing the Movements of the 



162. Structure of the Stomach, 



163. The Gastric Juice, 



164. Secretion of Gastric Juice, 



165. Methods of obtaining Gastric Juice, . 



166. Process of Gastric Digestion, . 



167. Gases in the Stomach, 



168. Structure of the Pancreas, 



169. The Pancreatic Juice, 



170. Digestive Action of the Pancreatic Juice, 



171. The Secretion of the Pancreatic Juice, 



172. Preparation of Peptonised Food, 



173. Structure of the Liver, 



174. Chemical Composition of the Liver-Cells, 



175. Diabetes Mellitus,' or Glycosuria, 



176. The Functions of the Liver, . 



177. Constituents of the Bile, 



178. Secretion of Bile, 



179. Excretion of Bile, 



Intestine 



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