Micro-organisms : with special reference to the etiology of the infective diseases / by C. Flügge ; translated from the 2nd and thoroughly revised ed. of "Fermente und Mikroparasiten" by W. Watson Cheyne.

  • Flügge, Carl, 1847-1923.
Date:
1890
Catalogue details

Licence: Public Domain Mark

Credit: Micro-organisms : with special reference to the etiology of the infective diseases / by C. Flügge ; translated from the 2nd and thoroughly revised ed. of "Fermente und Mikroparasiten" by W. Watson Cheyne. Source: Wellcome Collection.

    823/844 (page 809)
    c. Soil.—As yet uo accurate methods of investigating invcstifi-ation the bacteria of the soil have been published. The°^^°''' author has found that the best method is to take a small knoAvn quantity of the soil and mix it with a known quantity of sterilised distilled water; the mixture is thoroughly shaken up for a half to one hour ; and then various quantities of the fluid are taken and employed, as in the case of the examination of water, for a number of plate cultivations.—In the case of the soil, also, it is of importance to examine the specimen as soon as possible after it has been taken, because the saprophytes multiply rapidly in the laboratory as the result of the higher temperature. No trustworthy method has been published with regard to taking specimens of the soil at various depths in such a way that all contamination from without and from the adjacent layers of soil is avoided. It is of extreme importance in the interest of hygienic investigation that the methods of the bacteriological in- vestigation of air, water, and soil should be improved.