1
500
to be in harmony with those already detailed
under Series No I
By working
through
the
guinea pig strain of the bacillus a Number of these animals, no
зное
alteration in virulence was observed.
Series NOTTI Feeding with fresh white
rat tursues, teeming with the B. pestis. The results obtained were identical with hose of
the foregoing.
Series No TV Feeding with fresh bouillow
cultures of
the B. pestis, derived from
human, rat, and guinea pig cadavers. has been previously
we the cultures used,
téstéo as to their virulence, which was
maintained high throughout
perces of Experiments
were in cacho case
at 37°C and
off
the whole
The broth cultures
48 hours old, incubated +10A, alkalinity.
the techniques of there Experiments was Sunilat to that already described under Series 12. I.— varying quantities of the culture in cubig
centimetres.....