German medical scientist (1843-1910) regarded as the father of bacteriology. He isolated the tuberculosis bacillus and the anthrax virus, and received the Nobel Prize in Physiology or Medicine in 1905. ALS in German, signed “R. Koch,” one page both sides, 4.5 x 7, October 26, 1888. Letter to a city planning commissioner, in full (translated): "I presented H. E. Sydow, Director of the Scientific Deputation, with your request regarding my report on river pollution that I prepared for that deputation. H. E., however, denied your request, quoting that it was in conflict with the regulations of said Deputation, to let you have the report. In private, however, he lets you know herewith that if the minister will give his consent, the report as well as the decisions made on this subject by the meeting of the Scientific Deputation, will be published soon in the Quarterly Journal for Judicial Medicine and Public Healthcare (published by Enlenberg)." In fine condition. Accompanied by the original mailing envelope, addressed in Koch's hand.
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