5%) Bacterial Flora of the Atlantic. 445 
asharply defined air pit at the surface, the base of which 
s covered with grayish masses of zoogleea. In the lower 
part of the liquefied needle track, spirally twisted strands are 
tobe noted. A thick membrane is finally formed on surface 
ftom bits of flocculent zooglcea that adhere in masses which 
-asily rupture upon the slightest movement. In old cultures, 
the bottom of the liquefied gelatin is covered with flocculent 
-$towth masses and the culture is not especially characteristic. 
On agar, this bacillus grows rapidly, forming a thick dull 
white colony with a sharply defined border. Under the lens, 
the edge of the colony is seen to be formed of numerous pat- 
no freely projecting filaments radiating into the surround- 
ing medium. 
t In deep stick gelatin or agar cultures as in bouillon 
lubes prepared according to Buchner’s pyrogallic acid method, 
_*tmatked growth is to be noted, showing the facultative na- 
ture of the germ. : 
mn potato there is a well defined compact white growth 
Btls soft in texture and easily detached. When inoculated 
into milk, this bacillus sets up a very rapid change coagula- 
| ing the casein and finally peptonizing it. The serum of the 
nilk is at first filled with a cloudy precipitate that is formed 
a ta th the thasses of zoogloea but these are finally deposited 
— i€ coagulated casein. 
| 2acillus maritimus, sp. nov.—Bacillus maritimus 1s found 
- Mite Plentifully distributed in the mud layers. It is a 
| ON eg bacillus of good size (dimensions 1.50 ie th a 
‘ e with round ends, but the cells are usually quite clo e 
aed into filaments of varying length. The sepals : 
oe stanular appearance so characteristic of marine a 
| half th tms. The spores are small, scarcely exceeding — ily 
formas idth of the cell (0.74 Xx 1.5/4). These are re 
Wie forty-eight hours at the room temperature. ns 
 attificial media this germ grows juxuriantly. 
which it develops. In gelatin, two ct 
allel flamentous bands, that are looped at the edge so there 
the substratum 
ee re ee ae 
