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64 STORRS AGRICULTURAL EXPERIMENT STATION. 
Gelatin plate; brownish granular colonies with an irregular edge, which 
become surrounded by a liquefying pit. The pit is finely granular with a 
nucleus. A nucleus soon breaks up into variously formed irregular masses 
and the whole colony becomes uniformly granular. 
Agar; not characteristic. 
Potato; much folded into thick, contorted folds, with a yellowish tinge. 
Milk; the milk is, after several days, curdled into a soft curd, which digests 
at once into a colorless liquid, completely dissolving the casein. Cream ripened 
by this organism develops a very unpleasant flavor and aroma in the butter. 
No. 150. (Uncommon.) 
Morphology, size, .7u by 1.34. Long threads of rods with rounded ends. 
Gelatin plate; colonies 2 mm. in diameter forming thick, raised, yellowish 
masses lying in a broad pit. Liquefaction proceeds slowly; the colony remains 
as a flat, dense, opaque mass, folded and wrinkled. Later a peculiar sow 
white mass arises in the center of the colony looking like a mould. This is 
extremely peculiar and very characteristic. 
Gelatin stab; a shallow pit is produced. The growth is slow, and a clear 
liquid is formed with a dense, yellow scum, but no sediment. Later the liquid 
becomes cloudy and a sediment collects which may be white or yellow. 
Agar; not characteristic. 
Potato, develops a wrinkled, brown skin, which later becomes dry and highly 
folded. 
Milk, is curdled in four days at 36° and in two weeks at 20°, into a soft 
alkaline curd. It eventually digests into a somewhat transparent mass, but the 
digestion is incomplete. A very pleasant odor is developed. 
No. 51. (Rare.) 
Morphology, size, .8u by 1.54 to 2u. Rods with square ends, 
Gelatin plate; colony irregular and developing a peculiar, characteristic, con- 
torted mass arranged in parallel rows of thread. A proteus-like colony. 
Gelatin stab; growth is slow, anda shallow pit is formed which in about three 
weeks half liquefies the gelatin, but remains to the end as a cone shaped pit. 
Agar, not characteristic. 
Potato; a velvety white, even snow white, thick growth, 
Milk; curdles in two days into a soft, jelly-like mass which rapidly digests into 
a yellowish, cloudy liquid which is alkaline. Butter made from cream ripened 
with this organism has but little taste and what taste it has js unpleasant. 
No, 158. (Not common.) 
Morphology, size, 1.24 by 34 to 6u, with blunt ends. Threads not long and 
frequently broken. 
Gelatin plate; a large colony, I cm, in diameter, uniformly granular, with a 
radiating rim. 
Gelatin stab, a deep funnel formed with liquid at bottom and an air space at 
the top. The liquefaction increases and a broad cone of slightly cloudy liquid 
is produced with a scum. Later the liquid becomes clear and the scum dense. 
Agar, white, opaque and moderately thick. The growth is tough and not 
easily broken into fragments. 

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