Bacteria in relation to country life / by Jacob G. Lipman.

  • Jacob Goodale Lipman
Date:
1908
Catalogue details

Licence: In copyright

Credit: Bacteria in relation to country life / by Jacob G. Lipman. Source: Wellcome Collection.

    501/520 page 477
    Fallow crops, 237, 266. Fallowing (the cultivation of land which is allowed to remain bare for an entire growing season), defini- tion of, 265; economy of, 270; in ancient times, 265; objections to, on sandy soils, 270; wastefulness of, 271. Fallow soils, 267, 268; bacteria in, 273. Fallows and aeration, 269; bare, 266, 270, 272; characteristics of, 267; conserv'ation of moisture in, 269; elimination of, 267. Farms, abandoned, 271; sewage, 131. Farmyard manure, losses from, 306. Fats, 28. Fermented liquors, bacteria in, 458. Ferments (substances or organisms capable of causing fermentation, that is, chemical change in organic materials, which is rather intense in character), nitric, 171. Filter beds (masses of coke, broken stone, clinkers, sand, and the like, arranged in layers of varying de- gree of fineness and employed for the filtration of water or sewage), 82, 83. Filters, domestic, 86, 87, 121, 122; efficiency and temperature, 120; working capacity of, 124. Filtration of sewage, 116; of water, 81, 82, 83. Finishers (chemicals that may be used to purify still further the filtered sewage), 134. Fish, 440. Fisher, .50. Flagella (long, thread-like appendages on the bodies of bacteria employed as organs of locomotion), 17. Fla.x, bacteria in the preparation of, 456. Floats (finely ground raw phosphate rock), 284, 285. Flora, bacterial, 165. Food, ab.sorption of, by bacteria, 164; digestion of, by bacteria, 164; products, pickling of, 439; require- ments of bacteria, 30. Foods, exclusion of preservatives from, 440; preservation of, and bacteria, 431. Fore-milk, bacteria in, 360. Form and structure of bacteria, 13. Formaldehyde, use of, in milk, 393. Forcing effects of green-manures, 263. Forests, influence of, on bacteria in air, 51. Fraser, 362. Freudenreich, 318, 418. Fruit, keeping quality of, and green- manures, 261. Galactase (an enzyme found in cow’s milk, and of considerable impor- ance in the ripening of cheese), 419, 422. Gammelost, 422. Gayon; 184. Gelatine, use of, in plate methods, 9 Germicidal power of milk, 382, 383. Germicides (chemical substances de- structiv^e to bacteria even when used in comparatively small amounts), 42. Gilbert, 193, 209, 211. Giltay, 184. Glycogen (a kind of sugar found in the liver, and, also, in some species of bacteria), 27. Goodwin, 310. Gorgonzola, 422, 426. Granluose (a starch-like substance found in some species of bacteria). 28. Green-manuring, 237; practice of, 242. Green-manures, 237; accumulation of nitrogen by, 261; decomposition of in the soil, 255; depth of covering of, 259; draught on soil-moisture, 244; effect of on keeping quality of fruits, 261; — on soil bacteria, 244, — succeeding crops, 247, 259;
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