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Updated: June 9, 2025
The same species may form a short rod, or a long thread, or break up into spherical spores, and thus either a short rod, or a thread, or a spherical form may belong to the same species. Other species may be motile at one time and stationary at another, while at a third period it is a simple mass of spherical spores.
The upper part of the antheridium becomes separated from the parent stem by a septum, and its contents are converted into ciliated motile antherozoids.
They also occasionally have an associate muscular development in the subcutaneous tissues similar to the panniculus adiposus of quadrupeds, giving them preternatural motile power over the skin. The man recently exhibited under the title of the "Elastic-Skin Man" was an example of this anomaly.
Yes! by a series of resolute efforts, in using a new battery of lenses the finest that at that time had ever been put into the hands of man I was enabled to show in succession that each motile form of Bacterium up to B. lineola accomplished its movements by fibers or flagella; and that in the act of self-division, constantly taking place, a new fiber was drawn out for each half before separation.
Many forms are motile some in virtue of fine thread-like flagella, and others through contractility of the protoplasm. The great majority multiply by simple fission, each parent cell giving rise to two daughter cells, and this process goes on with extraordinary rapidity. Other varieties, particularly bacilli, are propagated by the formation of spores.
This is true of all questions of educational psychology. This first distinction between children as having general application is that which I may cover by saying that some are more active, or motile, while others are more passive, or receptive. This is a common enough distinction; but possibly a word or two on its meaning in the constitution of the child may give it more actual value.
A motile bacillus has been discovered which is supposed to cause the disease and there is evidence that this may be carried by a mosquito or fly, but until the discoveries of the doctors, sent out by the Liverpool School of Tropical Medicine, are published, it is premature to give an opinion. Up to the present many remedies have been prescribed without success.
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