CONTENTS ix 



PAGE 



Dextrins ........... 103 



General properties 106 



Amylodextrin ....... ... 106 



Erythrodextrin 107 



Commercial dextrin ........ 107 



Glycogen 107 



Preparation 109 



Properties no 



Identification in 



Estimation . . . . . . . . . .111 



Paradextrane and paraisodextrane. . . . . . .111 



Inulin . . . . . . . . . . . .Ill 



Preparation . . . . . . . . . .114 



Characters . . . . . . . . . -US 



Identification 115 



Inulin-like substances . . . . . . . . • n? 



Mannane 117 



Paramannane 118 



Carubin ........... iiS 



Galactane . . . . . . . . . . .119 



Paragalactane . . . . . . . . . .119 



Amyloid ........... 120 



Gums 120 



Microchemical reactions I2i 



Gum arable . . . . . . . . . . .122 



Reactions 122 



Gum tragacanth 123 



Wood gum and cerasin or cherry gum 123 



Wound gum 123 



Mucilage 124 



Function 125 



Pectic bodies ........... 125 



Microchemical reactions 127 



Cellulose 128 



Classification .......... 128 



Characteristics and properties of normal cellulose . . . 130 



Action of chemicals on cellulose 131 



Characteristics and properties of compound celluloses . . . 134 



Constitution 136 



Industrial uses of cellulose and cellulose products .... 138 

 Commercially valuable derivatives of cellulose .... 138 

 Microchemical reactions ........ 141 



The synthesis of carbohydrates in green plants 143 



Introductory : Aldehydes 143 



Formaldehyde ......... 148 



Photosynthesis 151 



SECTION III.— GLUCOSIDES 166 



Constitution 1G7 



Identification ........... 169 



Physiological significance ......... 170 



Cyanogenetic glucosides ......... 173 



Isolation 175 



Chemistry 175 



Reactions 176 



