230 Ward. — - Thames Bacteria , III. 
a thin layer extends to the sides, with a pale-yellow cloudy 
mass above ; the axis being hardly visible — faded away. 
At 24 0 C. it rapidly liquefies above in 48-60 hours, with 
yellow-white clouds. 
Streak at 15 0 C. In forty-eight hours a scooped grove, 
along which the mass slides as a viscid yellow and whitish 
mass. Fimbriated thin edges to the groove, like No. 7. On 
the third day the colour is ochre to orange, very like No. 7. 
In fourteen days the resemblances to Nos. 7 and 17 are 
pronounced : turbid liquid (half liquefied), slight veil, flecks, 
and abundant orange-yellow deposit — rather paler than in 
No. 7. In twenty-two days, four-fifths is liquid, turbid, and 
with an ochre deposit. This deposit consists of cocci and 
rods up to 6 ix long. Floating flecks. Submerged in gelatine 
it will not grow, indicating that it is aerobic. 
Agar at 34 0 C. No signs of growth. 
At 25 0 C. slow growth. In five days an abundant dirty- 
white deposit, and a smooth, thin, nearly white film on the 
agar. This becomes yellowish-white, and the colour and 
thicker growth alone distinguish it from No. 7. 
At 22° the growth is somewhat better. A pale yellowish, 
cloudy and iridescent film spreads in three days, and 
a yellowish-white deposit forms. The filmy edges of the 
growth are diffuse and very iridescent, greenish : the drainage 
becomes densely buff-white, turbid. When scraped with 
a needle the growth is dirty- white. 
At 12-15 0 on agar a wet yellowish or dirty- white streak 
forms in two days, with the edges fimbriated. It seems to 
grow more rapidly than at 25 0 C. This becomes a dirty- white 
shining gum-like layer all over. No growth under anaerobic 
conditions in fourteen days at 22-25°C. 
The growth on agar is decidedly thicker and whiter than 
either No. 7 or No. 17, but otherwise similar, and the curious 
faint iridescence with slight tinges of green to pink in various 
lights is marked. The abundant deposit is flocculent, nearly 
white. The broad streak-layer has thin jagged edges : colour 
yellowish, but far paler than No. 7 in eight days. 
