vi PREFACE 



baths, clothing, &c., on metabolism ; the causation of dyspnoea, 

 and of Cheyne-Stokes respiration ; the influence of the thyroid 

 and suprarenal glands on metabolism ; the action of the digestive 

 ferments ; Catalysts, and chemical excitants ; the colloidal structure 

 of living matter and the influence of electrolytes in solution a 

 subject of immense importance to therapeutics ; the formation 

 and absorption of lymph ; the urinary excretion, and so forth. 



In the bibliography at the end of each article only such 

 references are given as will enable the reader to find his way 

 into the full literature of the subject dealt with. 



The Editor hopes, if this volume fulfils a want which he be- 

 lieves exists, to edit a subsequent volume in which other subjects 

 of equal interest and importance may be treated in a like 

 manner. 



He offers his best thanks to Drs. J. S. Haldane and J. B. Leathes 

 and Mr. J. Craw for reading certain parts of the proofs. 



OSBORNE HOUSE, LOUGHTON, 



November 26, 1905. 



