A Guide to the Microscopical Examination of Drinking Water; by Macdonald,John Denis

By Macdonald,John Denis

in contrast to another reproductions of vintage texts (1) we've not used OCR(Optical personality Recognition), as this ends up in undesirable caliber books with brought typos. (2) In books the place there are photos equivalent to snap shots, maps, sketches and so on we've got endeavoured to maintain the standard of those pictures, so that they signify safely the unique artefact. even though sometimes there's definite imperfections with those outdated texts, we consider they should be made on hand for destiny generations to enjoy.

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