viii CONTENTS 



Metabolism (continued) : 



Thermotaxis ..... 232 



The Means of Regulating Heat-production . . 235 



The Regulation of Thermolysis .... 235 



The Thermotactic Nerves . . . 238 



Other Forms of Energy-expense . . . 239 



Excretion .... ... 239 



The Urine ... . 240 



The Composition of the Urine .... 242 



The Excretion of Urine . . . 245 



The Discharge of Urine ..... . 248 



The Expired Air . .251 



The Sweat ... . 252 



The Feces . 252 



CHAPTER VII. 

 THE BLOOD AND THE LYMPH. 



The Chemical Composition of the Blood and Lymph . . . 254 



The Chemical Components of the Plasma and Lymph ..... 255 



The Chemical Components of the Erythrocytes .... . 256 



The Chemical Components of the Leukocytes . . . 257 



The Chemical Components of the Thrombocytes . . . 258 



Whole Blood ....... . 259 



Coagulation . . . . . . . . . . . 260 



The Physical Constitution of the Blood and Lymph ..... 262 



The Erythrocytes . . ; . . . . 263 



The Leukocytes . . .266 



The Thrombocytes . . ...'.."' . 269 



Lymph ............. 270 



The Formation of Lymph . . . . ... . . 271 



The Physical Constitution of Lymph . . . . . . . 273 



The Quantity of the Lymph .- . . 274 



The Functions of the Lymph ......... 274 



CHAPTER VIII. 

 THE CIRCULATION. 



The Causes of the Circulation . . . 278 



The Contraction of the Heart . .... . . . 278 



The Recoil of the Arterial Walls . 279 



Thoracic Suction . . . . . . . . . 280 



Compression by the Body-muscles . . . . . . .281 



The Suction of the Relaxing Auricles ....... 282 



The Speed of the Blood-current . . . . . . . .282 



The Circulation-time . . 283 



The Pulse-wave ... 284 



Blood-pressure ... . . . . . . . 284 



The Pulse-rate of the Heart .286 



The Cardiac Sequence . . . . . . . . . . 288 



