. Fig. 16 —From a Preparation of the Blood of the Spleen of a Guinea-Pig dead of Anthrax. 1. White blood-corpuscle. 2. Red blood- discs shrunken. 3. Chains of bacillus anthracis. 4 Degenerating bacilli, the sheath only being preserved. Magnifying power 700. (The preparation had been stained with gentian-violet.)—Klein. thus becoming pathogenic and often giving rise to fatal diseases. In some such way as this we may suppose that certain diseases originally arose. The life-history of septic micro-organisms outside the animal body is not well known as yet. The facts that they are modifiable by al
. Fig. 16 —From a Preparation of the Blood of the Spleen of a Guinea-Pig dead of Anthrax. 1. White blood-corpuscle. 2. Red blood- discs shrunken. 3. Chains of bacillus anthracis. 4 Degenerating bacilli, the sheath only being preserved. Magnifying power 700. (The preparation had been stained with gentian-violet.)—Klein. thus becoming pathogenic and often giving rise to fatal diseases. In some such way as this we may suppose that certain diseases originally arose. The life-history of septic micro-organisms outside the animal body is not well known as yet. The facts that they are modifiable by alterations of tem- perature and by differences in the medium to which they are subjected, supply us with clues which are being extensively worked out. There are, for instance, sorSe bacteria which, under the influence of certain conditions of this kind, produce definite pigments. From the results of his many experiments. Dr. Klein concludes that there are some definite micro-organisms which, as a rule, exist and grow in various substances, and also
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