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               THE BACILLUS OF HÆMORRHAGIC SEPTICÆMIA.

                              I.—CULTURAL CHARACTERS.

The bacillus grows well on all of the common media
ærobically.

On glycerin peptone agar it grows as a transparent,
translucent, shiny, gummy growth which becomes more and
more opaque with age.

Young cultures look like clear drops of dew on the
surface of the medium.

Cultures over a week old are quite white and opaque.

In 24 hours a good growth is obtained.

Cultures 24 hours old are not so gummy and slimy to the
touch of the platinum needle as cultures three days old, and
the older the culture the more viscid it becomes and the
firmer it adheres to the surface of the agar. It grows
equally well at 30°C. as at 37°C. At 20°C. the growth is
somewhat slower.

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HÆMORRHAGIC SEPTICÆMIA. THREE DAYS' GROWTH UPON AGAR.

In growing the bacillus, it is important to remember its
sensibility to dryness, and that unless there is constantly a