LIST OF ILLUSTRATIONS xxvii 



PAGE 



90. Capillary constricted by vasomotor influence .... ... 220 



91. Apparatus for determining blood pressure in capillaries 221 



92. Cubic enlargement of inferior vena cava of cat . . 223 



93. Position of human body in which veins are stretched most 226 



94. Position of human body in which veins are relaxed most 226 



95. Variations of aortic pressure in dog . . 229 



96. Respiratory variations of blood pressure, rabbit 230 



97. Reflex rise of blood pressure in rabbit 236 



98. Reflex fall of blood pressure in rabbit 237 



99. Section of hepato-pancreas of an isopod crustacean (courtesy of Dr. Edgar F. 



Nolan, Philadelphia Academy of Natural Sciences) 244 



100. Parotid gland of rabbit 260 



101. Parotid gland of cat . . .261 



102. Parts of a tongue gland of the frog 262 



103. Hourly course of secretion of gastric juice in dog's stomach 265 



104. Hourly course of the digestive action of gastric juice on proteid .... 265 

 105. Secretion capillaries surrounding parietal cells of gastric glands .... 267 



106. The course of pancreatic secretion in man 270 



107. The course of secretion in the pancreas of the dog 270 



108. Enzymes of pancreatic juice, relative rate of activity of 271 



109. Pancreas of rabbit as observed in living animal .... . . 272 



110. Hourly course of discharge of bile into the intestine of the dog ' . . . . 275 



111. Glands of large intestine of rabbit 277 



112. Sagittal optical sections of floor of mouth and neck 281 



113. Motor nerves of throat and palate of monkey . . . . ' . . . . 282 



114. Nerves of stomach musculature . 284 



115. Schema to illustrate relation of longitudinal muscular fibers of intestine . . 287 

 116. Schema illustrating, rhythmical segmentation of small intestine (courtesy of Dr. 



W. B. Cannon) 288 



117. Schema illustrating antiperistalsis (courtesy of Dr. W. B. Cannon) . . . 289 

 118. Successive stages in absorption of fat in epithelial cells of frog's intestine . . 304 



119. Duodenum of mouse showing absorption of iron 307 



120. Experiment on expansion of lungs of rabbit (drawn for this edition) . . .311 



121. Pneumographic curve of man 313 



122. Apparatus for registering volume of the respired air 313 



123. Respiratory curve of rabbit 314 



124. Thorax as seen from the right side 315 



125. Schema of movements of the diaphragm, liver, stomach, and spleen in respira- 

 tion . . . . . 316 



126. Diaphragmatic and thoracic types of respiration 318 



127. Number of respirations per minute in persons of different ages .... 319 



128. Spirometer 320 



129. Respiratory curve of rabbit 328 



130 Schema of Ludwig's pump for extraction of blood gases 334 



131. Absorption of oxygen by horse's blood 337 



132. Absorption of carbon dioxide in solution of haemoglobin 339 



133. Lung catheter 341 



134. Amount of carbon dioxide expired, measured in two-hour periods . . . 343 

 135. Elimination of carbon dioxide on ordinary diet and in fasting .... 344 



136. Elimination of carbon dioxide by a boy . 345 



137. A myxcedematous woman . . . . 359 



138. A cretinous child (from Holt's "Diseases of Children") 360 



