CONTENTS. 



INTRODUCTION. 



Impetus to study given by Darwin. Morphological Pedigrees. 

 Inheritance and Adaptation. General Sensibility of the Living 

 Cell. Morphological and Physiological Characters 



PAGE 



1 



SECTION. I. 

 GENERAL PRELIMINARY CONSIDERATIONS. 



CHAPTER I. 



THK PHYSIOLOGY OF OEGANISMS. 



Morphology and Physiology. Topography of Organs. Scope of 

 the Book. Division of the Subject 25 



SECTION II. 



THE INFLUENCE OF INANIMATE SURROUNDINGS. 



CHAPTER H. 



FOOD AND ITS INFLUENCE. 



The Equivalence of Food to Tissue. The Optimum of Food. Sti- 

 mulants. Monophagous and Polyphagous Animals. Modifica- 

 tions caused by Food and Change of Food. Changes in 

 Structure and in Colour ........ 40 



