. Laboratory work in bacteriology. Bacteriology. SIZE AND STRUCTURE OF THE BACTERIAL CELL. 39 reason, therefore, to believe that all motile bacteria give rise to these so-called giant-whips. It is possible that the spirals observed in the intestinal contents of cholera, and those present in hospital gangrene, are not distinct organ- isms, but rather altered flagella. The author has found giant whips in the bodies of animals (Fig 7 of. Their size can be inferred from the fact that they can be seen in unstained specimens. The larger forms can be easily seen with a No. 3 objective. The author has
. Laboratory work in bacteriology. Bacteriology. SIZE AND STRUCTURE OF THE BACTERIAL CELL. 39 reason, therefore, to believe that all motile bacteria give rise to these so-called giant-whips. It is possible that the spirals observed in the intestinal contents of cholera, and those present in hospital gangrene, are not distinct organ- isms, but rather altered flagella. The author has found giant whips in the bodies of animals (Fig 7 of. Their size can be inferred from the fact that they can be seen in unstained specimens. The larger forms can be easily seen with a No. 3 objective. The author has repeat- edly found giant-whips that were 70 ij. in length. In one instance the length was 132 ,a, or rh of an Fig. 7. Giant whips, a and b from photographs of Bacillus oedematis maligni No. II. a—Colorless spiral in streak preparation from peritoneum of a guinea-pig— bacilli stained; ^—Large spindlershaped spiral, compared with ordinary whips; c— Slender, long spiral form. The giant-whips are invariably motionless and usually are spindle-shaped. In this case the borders are wavy and corresponding diagonal bands will be seen, resembling the twisted appearance of a rope. Sometimes a spindle seems to divide lengthwise, so that it appears as if two spindles diverged from a common point. The thick spindle is not the only form in which the giant-whip is met with. It may be a slender, wavy, very long spiral, without any enlarge- ment or thickening. Such spirals may extend through the entire field. These thread-shaped giant-whips may be single, but they may also be bunched, proceeding, as it were, from a common point. The giant-whips are especially abundant in the water of condensation which is present in 1 Zeitschrift fur Hygiene, 17, plates 1 and Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original
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