Ward.- — Thames Bacteria , III. 
215 
There is considerable variation as to the rate of liquefaction, 
however, some cultures forming a big ‘ pouch 5 in three days, 
while others only form a ‘ thistle-head ’ funnel in that time. 
In gelatine, submerged, and the tubes put into pyrogallic 
acid and KHO in a closed bottle at 20° C., slow but perceptible 
growth occurred in the first twenty-four hours, and increased 
during the second day. 
Agar at 20°. In forty-eight hours a broad layer, perfectly 
smooth and glistening, ch alls?- white, and with a bluish cast in 
oblique light. Slight white deposit. 
Potato at 20°. A grey moist layer spreads all over in three 
days. It is much thinner than the flesh-coloured, raised, 
lumpy, and matt patch formed by No. 50, and totally different 
from it. In a week it is a little thicker, and spread all over as 
a wet grey-white layer. 
Broth at 18-20°. Dense turbidity in 24-48 hours, and 
a white deposit falls. No ring or veil in four days : still very 
turbid. 
At 33-35° a dense satiny turbidity in twenty-four hours, 
increasing during the second day. Still more turbid later, 
and with white flocks and deposit. 
Milk at 35°. Separation of clot on third day. Distinctly 
but not strongly acid. 
This form is pathogenic to guinea-pigs according to 
Dr. Kanthack. 
No. 61. 
No. 61, an imperfectly studied form, was evidently the 
same or very closely allied. There are doubts as to the 
pathogenicity, as the cultures were not successful. It seems, 
therefore, unnecessary to give details. 
No. 9 : Proteus type. 
A not uncommon liquefying non-chromogenic Bacillus (old 
cultures of which, however, are orange-coloured) occurred as 
very short rodlets 1-5-2 fx long by 0*75-1 broad, hardly if at 
all motile, and often oval 1*5 x 1 jx or so, which developed plate- 
