PAGE 



CONTENTS. 



PREFACE - . i x 



CHAPTER I. 

 HISTORICAL REVIEW i 



CHAPTER II. 



OCCURRENCE OF PROTEINS IN THE DIFFERENT PARTS OF PLANTS, AND 

 THEIR GENERAL CHARACTERISTICS 



CHAPTER III. 



ISOLATION AND PREPARATION OF SEED PROTEINS - 13 



(a) Extraction with Water - - 13 



(b) Extraction with Solutions of Neutral Salts - 16 



(c) Extraction with Alkaline Solutions - - 18 



(d) Extraction with Alcohol - - - 20 



CHAPTER IV. 



BASIC AND ACID PROPERTIES OF PROTEINS - -22 



(a) Basic Properties - - 22 



(b) Acid Properties - -27 



CHAPTER V. 



SOLUBILITY OF VEGETABLE PROTEINS - 30 



(a) Solubility in Water - 30 



(6) Solubility in Saline Solutions - -31 



(f) Solubility in Acids and Alkalies - '33 



(d) Solubility in Alcohol - * 33 



