English: Illustration from 1911 Encyclopædia Britannica, article BACTERIOLOGY.
Fig. 13.—A series of phases of germination of the spore of B. ramosus sown at 8.30 (to the extreme left), showing how the growth can be measured. If we place the base of the filament in each case on a base line in the order of the successive times of observation recorded, and at distances apart proportional to the intervals of time (8.30, 10.0, 10.30, 11.40, and so on) and erect the straightened-out filaments, the proportional length of each of which is here given for each period, a line joining the tips of the filaments gives the curve of growth. (H. M. W.)
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Encyclopædia Britannica, 1911
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== Summary == {{Information |Description={{en|1=Illustration from 1911 Encyclopædia Britannica, article BACTERIOLOGY. Fig. 13.—A series of phases of germination of the spore of ''B. ramosus'' sown at 8.30 (to the extreme left), showing how the gro