A manual of animal vaccination : preceded by considertions on vaccination in general / by E. Warlomont, ... translated and edited by Arthur J. Harries.

  • Warlomont, Evariste W., 1820-1891.
Date:
1885
Catalogue details

Licence: Public Domain Mark

Credit: A manual of animal vaccination : preceded by considertions on vaccination in general / by E. Warlomont, ... translated and edited by Arthur J. Harries. Source: Wellcome Collection.

Provider: This material has been provided by London School of Hygiene & Tropical Medicine Library & Archives Service. The original may be consulted at London School of Hygiene & Tropical Medicine Library & Archives Service.

    16/196 (page 4)
    KLEES DESCRIPTION OF MICROCOCCI physical characters from the small-pox microbe. However, it must have a structure differing in some points which escape our means of investigation, since they give results not entirely similar. Wlio can choose from among two poppy-seeds that which will give birth to a red flower, or that from which a white flower will develop ? The kernel of the sweet almond, which gives us a nourishing fruit, is indistinguishable to the eye from the kernel of the bitter almond, which contains the most potent poison; no one, however, would dream, from the external resemblance of the two nuts, of insisting upon their identity; and no one, for all that, would think of doubting that a difference must exist in their molecular arrangement. These differences indeed are infinitely small, but it is our means of investigation that are defi- cient. The development of these methods may en- lighten us to-morrow, perhaps; perhaps at some more distant period; perhaps never. Meanwhile, here is what is known of these bodies, which are so small that with the most powerful enlargements of our best instruments they only look to us like the jwints of common letter- press. Klebs gives the following description of them :*— The microbes of vaccine, like those of smaU-pox, are found exclusively in the form of micrococci; and in no phase of their development do they assume any other aspect than that of minute spherules. Neither in the small-pox pustule, nor in animal vaccine, nor in the viscera of persons who have died of small-pox, do we find tailed forms. We have then to do