CONTENTS ix 



PAGE 



.Dextrins io6 



General properties log 



Amylodextrin log 



Erythrodextrin no 



Commercial dextrin no 



Glycogen no 



Preparation 112 



Properties nj 



Identification 114 



Estimation 114 



Paradextrane and paraisodextrane 114 



Inulin 114 



Preparation 117 



Characters 118 



Identification 118 



Inulin-like substances 120 



Mannane i2o 



Paramannane 121 



Carubin 121 



Galactane 122 



Paragalactane 122 



Amyloid 123 



Gums 123 



Microchemical reactions 

 Gum arabic . 



124 



125 



Reactions 125 



Gum tragacanth 126 



Wood gum and cerasin or cherry gum 126 



Wound gum 126 



Mucilage 127 



Function 128 



Pectic bodies 128 



Microchemical reactions 130 



Cellulose 131 



Classification 



131 



Characteristics and properties of normal cellulose . . . 133 



Action of chemicals on cellulose 134 



Characteristics and properties of compound celluloses . . . 137 



Constitution 



139 



Industrial uses of cellulose and cellulose products .... 141 



Commercially valuable derivatives of cellulose .... 141 



Microchemical reactions 144 



The synthesis of carbohydrates in green plants 146 



Introductory : Aldehydes 146 



Formaldehyde 151 



Photosynthesis 154 



SECTION III.— GLUCOSIDES 169 



Constitution 



170 



Identification 172 



Physiological significance 173 



Cyanogenetic glucosides 176 



Isolation 178 



Chemistry ........... 178 



Reactions 



179 



