Bacillus anthracis. (After Koch.) A. Bacilli mingled with blood-corpuscles from the blood of a guinea-pig; some of the bacilli dividing. B. The rodlets after three hours' culture in a drop of aqueous humour. They grow out into long leptothrix-like filaments, which become septate later, and spores are develoepd in the segments.
Source: 1911 EB, Vol. 3, Page 161
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