—M. 0, Leigbton, health inspector of Montclair, N.J., declares that he has found bacteria to bo quite abundant in clay that has been used and re-used for modelling in schools. An attempt to sterilise the clay showed that the only efficient way of accomplishing this was by the use of superheated steam under a pressure of 15 to 20 pounds for 45 minutes. The- species of bacteria identified were those which occur in pus formations. Sterile clay was then inoculated with the bacilli of typhoid, diphtheria, and tuberculosis. A study of the clay showed the typhoid germ to be alive after 3? days, and the diphtheria and tubercle to be still alive in 18 dnys.
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Otago Daily Times, Issue 12243, 6 January 1902, Page 3
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115Untitled Otago Daily Times, Issue 12243, 6 January 1902, Page 3
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