Abstract
WHILE the general plan of this book remains the same as before, considerable changes have been introduced in the sections on soil bacteriology, on the control of milk supplies, on plant diseases, Snd on laboratory technique. In some cases, however, further information might have been given with advantage; thus under slimy or ropy bread practically no description is given of the causative organism. Under “tuberculosis” the illustration Fig. 50 is stated to depict “a bit of animal tissue”; what is actually shown is a giant cell only; the tubercles are stated to be “swollen masses of tissue,” and among animals that suffer from tuberculosis dogs and cats are mentioned; actually these animals rarely suffer from the disease. The consideration of the bacteriology of the soil, of milk, and of milk products is adequate, and such details as protozoa in the soil and soil sterilisation and the possibility of the accumulation of toxic substances in “worn-out soils” are all referred to. In an appendix a scheme of laboratory work is given, with detailed exercises, which should be of value to the teacher. The book is freely illustrated and clearly printed, and forms a good elementary introduction to the wide subject of agricultural bacteriology.
Agricultural Bacteriology.
Dr.
H. W.
Conn
By. Third edition, revised by H. J. Conn. Pp. x + 357. (Philadelphia: P. Blakiston's Son and Co., 1918.) Price 2 dollars net.
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H., R. Agricultural Bacteriology . Nature 103, 304 (1919). https://doi.org/10.1038/103304b0
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DOI: https://doi.org/10.1038/103304b0