CONTENTS. 



CHAPTER I. 



INTRODUCTION. 



PAGE 



General chemical composition of living matter 17 



Forces at work in the living world 17 



Character of chemical changes 18 



Synthetic processes in plants 18 



Oxidations and hydrations in the animal body 19 



Chlorophyl . 20 



The food-stuffs of the plant 22 



Synthesis of the carbohydrates 23 



Glucosides 24 



Mannides 25 



Synthesis of the fats 25 



Synthesis of the albumins 26 



CHAPTER II. 

 THE ALBUMINS. 



Elementary composition 27 



Reaction 27 



Solubility 28 



Crystallization 28 



Diffusion 29 



Behavior toward polarized light 29 



Coagulation 30 



Denaturization 31 



Behavior toward neutral salts 31 



Behavior toward alcohol 34 



Special reactions of the albumins 34 



Precipitation 34 



Color reactions 35 



Structural composition 38 



Molecular size , 45 



Classification 45 



THE NATIVE ALBUMINS 47 



The albumins 47 



The globulins 47 



The gluco-albumins 48 



The keratins 50 



The histons 51 



vii 



