terases, 186, 189.
Esters, 124, 125, 129.
"Ether extract," 141.
Etherial salts (_see_ esters).
Ethersol, 205.
Ethyl acetate, 125.
Ethyl nitrate, 125.
Excelsin, 176.
Extracellular enzymes, 184.

Fats, 18, 20, =129=, 224, 227.
Fat-soluble A, =243=.
Fatty acids, 132, 142.
Fehling's solution, 39, =47=.
Fermentability, =40=.
Ferments (_see_ enzymes).
Ferric salts, 11.
Ferrous salts, 11.
Fisetin, 118.
Flavone, 82, 83, 102.
Flavonol, 84.
Food, =1=.
Formaldehyde, =22=, 23, 25, 26, 27, 247.
Frame-work material, 20, 67.
Fraxetin, 82.
Fraxin, =82=.
Fructose, 23, 28, 32, 36, 38, 41, 44, 45, =47=, 57, 162.
Fructosides, 41, 42.
Fruit sugar (_see_ fructose).
Fucose, 35.
Fucoxanthin, 102, 112, 114.

Galactans, 47, 59, =63=, 72.
Galactoheptose, 36.
Galactooctose, 36.
Galactose, 32, 36, 38, 45, =47=, 57, 72, 77.
Galactosides, 41, 42.
Gaultherin, 81.
Gel, 172, 205, 208.
Gelation, 210.
Gel-formation, =208=, 211.
Gentianose, 52, =53=.
Gentiobiose, 49, =52=, 53.
Gentisin, 119.
Gitaligenin, 89.
Gitalin, =89=.
Gitogenin, 89.
Gitonin, =89=.
Glaucophyllin, 107.
Gliadin, 165, 170, 176.
Globulins, 170, 175, 176.
Glucase, 186.
Glucodecose, 44.
Glucoheptose, 36, 44.
Glucononose, 36.
Glucooctose, 36.
Glucoproteins, 175.
Glucose, 23, 28, 32, 36, =37=, 40, 41, 42, 43, 44, 45, 46, 57, 77.
Glucosidases, 189.
Glucosides, 18, 20, 41, 48, 55, =76=, 91, 93.
Glue, 210.
Glutelins, 175, 176.
Glutenin, 176.
Glycerine (_see_ glycerol).
Glycerol, 129, 131, =134=, 142.
Glycine, 166, 168, 177.
Glycinin, 176.
Glycogen, 59, =61=.
Glycyphyllin, =79=.
Graminin, 59, =62=.
Granulose, 60.
Grape sugar (_see_ glucose).
Guanase, 190.
Guanine, =160=, 162.
Gulose, 36, 37.
Gum arabic, =68=.
Gums, 62, 67, =68=.
Gum tragacanth, =69=.
Gun-cotton, 73.

Haematin, 110.
Haematinic acid imide, 109.
Haematoporphyrin, 110.
Haemoglobin, 110.
Haemopyrrole, 109.
Helicin, 81.
Hemi-celluloses, 63, =71=.
Hemi-terpenes, 147.
Heptoses, 30.
Hesperidin, =79=.
Hesperitin, 79, 80.
Heterotrophic plants, 16.
Hexosans, 59, 67.
Hexoses, 22, 28, 30.
Histidine, 169, =177=.
Histones, 175, 176.
Honey sugar (_see_ fructose).
Hordein, 153, 170, 176.
Hormones, 92, 239, =240=.
"Hot-drawn oils," 137.
Humins, 67.
Hydrastine, 155.
Hydrazones, 40, 49.
Hyd