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Excerpt from Twelfth Annual Report of the Provincial Board of Health of Ontario: Being for the Year 1893Although the methods for a bacteriological investigation of samples of water, as a means of determining their hygienic value, have become more exact within the past few years, there still remains much to be desired in order to give it that scientific character which it

Title : Twelfth Annual Report of the Provincial Board of Health of Ontario: Being for the Year 1893 (Classic Reprint)
Author : Unknown
Language : en
Rating :
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Type : PDF, ePub, Kindle
Uploaded : Apr 06, 2021

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