62 STORRS AGRICULTURAL EXPERIMENT STATION. 
Mik, rapidly curdled at 20° and at 35°, and digested into a cloudy, colorless 
or amber colored liquid with alkaline reaction. Butter made from cream 
ripened with this organism has an unpleasant flavor and aroma. 
No. 154. 
This organism is probably a variety of No. 123, differing only in growth on 
potato and in bouillon. The potato growth is scanty, the surface becomes 
covered with a slight, fuzzy growth, and later with small, rounded knobs con- 
taining spores. There is an abundant growth below the surface. In bouillon 
a jelly-like, tenacious, flocculent mass is formed in the liquid. In other respects 
this agrees with No. 123. 
No, 181. (Rare.) B. fliformis lactis, (n. sp.) 
Morphology; size, 14 by 2u. The rods have a thick capsule with a central 
Staining body. Spores are 1.24 by 1.8y in size. 
Gelatin plate; colony has a fine, granular center, breaking at its edge into a 
granular margin surrounded with a clear, liquefying zone. Later the margin 
shows contorted lacing threads. | 
Gelatin stab; a narrow, cylindrical liquefying funnel is formed, with a cloudy 
liquid. Much gas is produced showing as bubbles on the surface of the liguid 
as well as the gelatin. Sometimes, after long cultivation, it grows without 
producing this gas. Liquefaction becomes complete and a dense scum and 
sediment is formed. 
Agar; may be dry and thin, but commonly forms a thick, widely spreading 
lobate or branching mass, which is dry, white and quite characteristic. 
Potato; a moist, yellowish, slimy mass grows over the surface. 
Mitk; curdled in two days with little change in reaction. Cream is rendered 
slightly acid with a sour cream taste, and butter made therefrom has a good 
flavor, but no aroma. 
No.'88. .(Rare.) 
Morphology; size, 1.54 by 34. Chains of a dozen elements are formed and 
large spores produced in bouillon. 
Gelatin plate; a liquefying pit filled with filaments. A central granular 
nucleus forms with coarse granular masses, which become uniformly distributed 
in the surrounding zone. 
Gelatin stab, a simple pit is formed which at first contains no liquid, but 
later liquefaction occurs slowly. 
Agar; yellowish or white, not characteristic, 
Potato; decidedly lemon yellow at first and later becoming dry, wrinkled and 
quite yellow. 
Milk; curdles at 20° in six days with a thick scum and a little whey. Is 
alkaline in reaction, Digests into an especially clear liquid with a tenacious 
scum and sediment. Cream develops an unpleasant odor and the fat separates 
as masses floating in the whey. Butter made therefrom has no taste nor aroma. 
The following three organisms show considerable similarities, especially in 
their morphology. But the type of colony they produce in gelatin is so 
different that I cannot regard them as identical. They resemble somewhat the 

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