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What will they think when they make a bacteriological examination of the water in the reservoir? It will stagger them." The next morning I was down to breakfast before my friend and stood before the fire eagerly scanning the papers. At first I could find nothing that seemed to indicate any further effects of the bacillus.
"We will set the table here," she said, gayly, for Saniel told her that the dining-room was uninviting, as it was a small bacteriological laboratory. The table was set by Phillis, who went and came, walking about with a gracefulness that Saniel admired. "You are doing nothing," she said. "I am watching you and thinking." "And the result of these thoughts?"
The principal reason for our failure is a very common one in bacteriological research, whose importance is not generally known, and that is, that there is not a single species of the lower animals that is subject to the diseases or can be inoculated with them. This unfortunate condition is the greatest barrier which can now exist to our discovery of the causation of any disease.
I watched his elaborate and thorough preparations, wishing I could be of assistance, but knowing the limitations of my own chemical and bacteriological knowledge. I grasped, however, that he was concentrating his study upon the spots he had cut from the portieres, in particular the stain where the point of the needle had been, and upon the incrustations on the inner surface of the tube.
At the Bacteriological Institute in Grahamstown, Natal, they have cultivated this fungus in culture tubes, and have carried it successfully throughout the whole year; and they have used it practically by distributing these culture tubes wherever swarms of grasshoppers settle and lay their eggs. The disease, once started in an army of young grasshoppers, soon reduces them to harmless numbers.
The finding of yellowish, white, cheesy nodules or masses in the liver, spleen, intestines and mesenteries is strong evidence of tuberculosis. A bacteriological examination of the tissues may be necessary in order to confirm the diagnosis. The same methods of treatment as recommended in tuberculosis of other domestic animals may be used in eliminating the disease from the premises and flock.
Most of the routine bacteriological work proved to be of much the same nature as that done in a health laboratory at home, and consisted of examinations to detect some of the ordinary communicable diseases such as diphtheria, cerebro-spinal meningitis, typhoid fever, malaria, dysentery, tuberculosis, and venereal diseases.
They can determine by bacteriological examination whether or not a person is a leper; but they are as far away as ever from knowing how that bacillus finds its entrance into the body of a non- leper. They do not know the length of time of incubation. They have tried to inoculate all sorts of animals with leprosy, and have failed.
These bacteria have then been cultivated by bacteriological methods and used in experiments for the fermentation of tobacco.
Bacteriological science has now in its possession a means of inoculation against cholera which is perhaps as efficacious as vaccination is against smallpox. Whether it will ever be used to any extent is doubtful, since, as already pointed out, we are in a position to avoid cholera epidemics by other means.
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