ie, Rising’ the surface a dirty cream color; but the deep trails- 
arent blood-red color of the gelatine remained unaltered in our 
ultures for weeks, as long, in fact, as these were preserved. 
In fluids similar phenomena appeared. For example, a cul- 
ure in beef broth made July 25, at 10 a. m., was barely per- 
eptibly turbid next day, but as vet without film or definite 
race of color. On the 30th of July, however, the upper third 
f tiie fluid was distinctly reddish orange, somewhat sharply 
mited from the indefinite yellowish below, and the surface was 
overed with a whitish film. August 2 the contents of the tube 
ere throughout a turbid orange-red, a thickish film had formed, 
hite at the edges and clouded at the center, and a consider- 
Ple precipitate had appeared. August 3 the color was simply 
lightly deeper. 
The technical description of this interesting bacterial form 
dll be published elsewhere, the object of this note being merely 
o enable the student of insect diseases to identify and cultivate 
b, in the hope that it may be found practically applicable to 
his and other insect species. Pressure of work at the office 
nade experiments with it impossible when I had it under ob- 
ervation mvself. 
