. Bacteria in relation to country life. Bacteria. Bacteria and Agriculture 11 resistance possessed by animals, of natural and acquired immunity to disease, and of the methods whereby im- munitj^ may be secured. The mortality from some of the most dreaded diseases has been reduced to an as- tonishing degree, and, with the aid of sanitation, some of them have become almost unknown. The achieve- ments of medical bacteriology, too vast to be reviewed here in detail, are only a promise of the still greater. Fig. 2. Cylinders used for chemical and bacteriological investigations of soils. achievement

- Image ID: RDGHK2
. Bacteria in relation to country life. Bacteria. Bacteria and Agriculture 11 resistance possessed by animals, of natural and acquired immunity to disease, and of the methods whereby im- munitj^ may be secured. The mortality from some of the most dreaded diseases has been reduced to an as- tonishing degree, and, with the aid of sanitation, some of them have become almost unknown. The achieve- ments of medical bacteriology, too vast to be reviewed here in detail, are only a promise of the still greater. Fig. 2. Cylinders used for chemical and bacteriological investigations of soils. achievement
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Image ID: RDGHK2
. Bacteria in relation to country life. Bacteria. Bacteria and Agriculture 11 resistance possessed by animals, of natural and acquired immunity to disease, and of the methods whereby im- munitj^ may be secured. The mortality from some of the most dreaded diseases has been reduced to an as- tonishing degree, and, with the aid of sanitation, some of them have become almost unknown. The achieve- ments of medical bacteriology, too vast to be reviewed here in detail, are only a promise of the still greater. Fig. 2. Cylinders used for chemical and bacteriological investigations of soils. achievements to come, and a vindication of the views set forth by the pioneers in the study,—Kohn, Pasteur, Lister and Koch. Bactcrinlogij and agriculture.—In agriculture, the de- velopment of bacteriology has given us a new insight into the nature of soil fertilit)^ We have learned to regard the soil as a culture medium with its almost endless number of species and varieties of bacteria, specialized to do important work in the transformation of soil, nitrogen, carbon, hydrogen, sulfur; in the tran,s-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Lipman, Jacob Goodale, 1874-1939. New York, Macmillan

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