NUTRITION AND Food STUFFS. 150 152 154 PANCREATIC JUICE. FUNCTIONS OF THE INTESTINAL MUCOUS MEMBRANE. Structure of the Small Intestine, .. Method of Obtaining Intestinal Secretion, Character and Functions of the Intestinal Juice, . . THE CONSTITUTION OF THE BLOOD AND THE BLOOD PLASMA. General Characteristics of the Blood, Amount of Blood in the Body, . 214 215 Pulmonary and Systemic Circulations, Method of the Circulation of the Blood, . 259 261 263 265 268 270 272 Structure of the Lungs and Air Passages, Pressure Differences in the Air, |