volume 51, issue 1, P59-74 1940
DOI: 10.1002/path.1700510110
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K. I. Johnstone

Abstract: MCLEOD and Gordon (1923a) pointed out that B. dysenterim (Shiga) occupied an anomalous position in a classification based on the production of HaOz and catalase in cultures. In this classification they assumed that all bacteria capable of reducing dyes such as methylene blue did so by the liberation of active hydrogen and that, since all bacteria could effect such reductions, all were capable of producing H202, although to varying degrees. It was accepted that all systems yielding active hydrogen, e.g. leuco-…

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