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"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 developed in the segments." — The Encyclopedia Britannica, 1910

Bacillus Anthracis

"The rodlets after three hours' culture in a drop of aqueous humour. They grow out into long leptothrix-like…

"a, a chain of motile rodlets still growing and dividing (bacilli). b, a pair of bacilli actively growing and dividing. p, a rodlet in this condition (but divided into four segments) after treatment with alcoholic iodine solution. c, d, e, f, successive stages in the development of the spores. r, a rodlet segmented in four, each segment containing one ripe spore. g2, g3, early stages in the germination of the spores (after being dried for several days); h1, h2, i, k, l and m, successive stages i, the germination of the spore." — Encyclopedia Britannica, 1910

Bacillus Megaterium

"a, a chain of motile rodlets still growing and dividing (bacilli). b, a pair of bacilli actively growing…

"A chain of motile rodlets still growing and dividing (bacilli)." — The Encyclopedia Britannica, 1910

Bacillus Megaterium

"A chain of motile rodlets still growing and dividing (bacilli)." — The Encyclopedia Britannica,…

"A rodlet in this condition (but divided into four segments) after treatment with alcoholic iodine solution." — The Encyclopedia Britannica, 1910

Bacillus Megaterium

"A rodlet in this condition (but divided into four segments) after treatment with alcoholic iodine solution."…

"A rodlet segmented in four, each segment containing one ripe spore." — The Encyclopedia Britannica, 1910

Bacillus Megaterium

"A rodlet segmented in four, each segment containing one ripe spore." — The Encyclopedia Britannica,…

"A motile rodlet with one cilium and with a spore formed inside." — The Encyclopedia Britannica, 1910

Rodlet

"A motile rodlet with one cilium and with a spore formed inside." — The Encyclopedia Britannica,…

"Germination of the spore of the hay bacillus—the axis of growth of the germinal rodlet is at right angles to the long axis of the spore." — The Encyclopedia Britannica, 1910

Spore

"Germination of the spore of the hay bacillus—the axis of growth of the germinal rodlet is at…