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 



Chlorophy] 21 



Chemical nature of chlorophyl 21 



The food-stuffs of the plant 23 



Synthesis of the carbohydrates 24 



Glucosides 25 



Mannides 26 



Synthesis of the fats 26 



Synthesis of the albumins 26 



CHAPTER II. 

 THE ALBUMINS. 



Elementary composition 30 



Crystallization 30 



Solubility 31 



Behavior toward neutral salts and alcohol 31 



Diffusion 31 



Coagulation 32 



Denaturization 33 



Behavior toward polarized light 33 



Color-reactions 34 



The xanthoproteic reaction 34 



Millon's reaction 34 



The reaction of Adamkiewicz 34 



The bin ret reaction ' 34 



Boiling with hydrochloric acid furfurol reaction . . . 35 



Sulphur test 35 



Molisch's test '. 35 



Precipitation of the albumins 36 



Decomposition of the albumins . 37 



Synthesis of the albumins 38 



Molecular size of the albumins 38 



Structural composition of the albumins 39 



Classifi cation of the albumins 40 



vii 



