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"Clostridium—one cell contains two spores." — The Encyclopedia Britannica, 1910

Clostridium

"Clostridium—one cell contains two spores." — The Encyclopedia Britannica, 1910

"Germination of spore of Clostridium butyricum—the axis of growth coincides with the long axis of the spore." — The Encyclopedia Britannica, 1910

Clostridium

"Germination of spore of Clostridium butyricum—the axis of growth coincides with the long axis…

"Various stages in the development of the endogenous spores in a Clostridium — the small letters indicate the order." — The Encyclopedia Britannica, 1910

Spores

"Various stages in the development of the endogenous spores in a Clostridium — the small letters…