160



INDEX



Clarifying liquors, 52.
Cleanser, mechanical, 94.
Common salt as manure, 84.
„ size, preparing, 47.
Comparison of French and British

gelatines, 158.
Composition of bone cartilage, 1.
„ plants, 68.
„ size, 47.
„ soils, 66.
Concentrated size, 48.
Condensing vapours, 25.
Coprolites, English, 83.
Curacoa guano-phosphate, 91.
Cut glue, 41.
Crystal white leaf gelatine, 158.
Cyanide of potash, nitrogen in making,
27.
Degelatinised bones, 136.
,, ,, nitrogen in, 35, 36.
Degreaaed bones, analysis, 132.
Degreasing bones, 7.
,, house, 5.
Digesting skins for gelatine, 51.
Dissolved bones, 121.
,, bone compound, 121.
,, Peruvian guano, 122.
Distillation of bones, 16.
Dried blood as manure, 108.
,, meat as manure, 107.
Direct steam method of extraction, 36.
Drying glue, 41.
„ house for glue, 42.
Early potato manure, 120.
Effluent, treatment of, 34.
Elevation of vacuum pan, 155.
English coprolites, 83.
Enriched Peruvian guano, 123.
Evaporation of skin glue, 34.
Evaporation in vacuo, 153.
Evaporators, 38.
Exhauster, use of, 25.
Extraction by benzene, 8.
„ of fat, 10.
„ of akin glue, 34.
Extractors, 36.
Factors for determining equivalents of

weighed bodies, 150.
Falkland Islands guano-phosphate, 91
Farmyard manure, analysis of, 71.
, , use of, 72.
Fat, bleaching of, 13.
„ impurities in, 13.
Fat, in bones, 129.
„ refining, 12.
„ extraction, 10.
Fatty acids in fat, 135.
French gelatine, 158.
French phosphorites, 84.
Furnace for bone distillation, 19.
Garden manure, 123.
Gas yielded from bones, 26.
Gelatine, comparison of French and
British, 158.
,, testing, 55.
„ water absorption of French

and British, 158.
,, making, 49.
, , properties of, 49.
German phosphates, 85.
Germination, 67.
Glue testing, 55.
,, boiler, 34.
, , boiling and clarifying house, 36.
,, drying, 41.
,, making, 32.
,, properties of, 32.
