CONTENTS i x 



CHAPTER XIII. 



PROPERTIES CONFERRED BY THE COLLOIDAL CONSTITUENTS: STRUCTURE 

 AND CONSISTENCY. 



The Emulsion-structure of Protoplasm 284 



The Viscosity of Protoplasm 295 



Jellies and Gelatinization 298 



The Osmotic Pressure of Protein Solutions 302 



The Swelling of Protein Jellies '.'.. 304 



CHAPTER XIV. 



PROPERTIES CONFERRED BY THE COLLOIDAL CONSTITUENTS: CHEMICAL 

 AND BIOLOGICAL. 



Effects of Disturbance of the Inorganic Environment ' . 310 



Effects of Removal of Calcium from the Tissues and Tissue Fluids . . . 314 

 The Mutually Antagonistic Action of Salts and Physiologically Balanced 



Solutions 318 



The Origin of the Mutual Antagonism of Inorganic Salts 321 



The Origin of Acid Secretions 327 



The Selective Action of Tissues and the "Oligodynamic" Actions of Heavy 



Metals 328 



The Biological Individuality of Tissues and Tissue Fluids 330 



PART III. 

 THE CHEMICAL CORRELATION OF THE TISSUES. 



CHAPTER XV. 

 THE VEHICLES OF CHEMICAL CORRELATION: BLOOD AND LYMPH. 



The Composition of the Blood 335 



The Coagulation of the Blood 342 



The Chemistry of Hemoglobin 350 



The Crystalline Forms of Hemoglobin in Relation to the Biological Indi- 

 viduality of the Blood . 356 



The Chemical Detection of Blood . . 361 



The Origin and Composition of Lymph ........... 362 



