Observations on indol-positive Proteus.

Some Observations on the Behaviour of Amoeba proteus

Late deoxyribonuclease activity of Salmonella enteriditis.

As a result of chance observations, the authors studied for deoxyribonuclease activity 16 strains of Salmonella, including six fresh isolates and ten stock cultures, with positive results in 13. Reactions characteristically occurred at 48 hours or later, with the majority being manifest at 72 hours and the latest at six days. No other positive reaction was observed among approximately 7,000 Ent...

The Agglutinability of Blood and Agar Strains of Typhoid Bacilli

Cultivation on 10 per cent rabbit blood agar did not affect the agglutinability of fifty-seven strains of typhoid bacilli. The authors were unable to confirm the observations of Gay and Claypole on the variation in agglutinability caused by cultivating the typhoid bacillus on blood agar. A typhoid bacillus showing irregularity in fermentation, agglutination, and indol production is described.

The formation and development of large bodies in Proteus vulgaris OX-19. I. Bright phase contrast observations of living bacteria.

The appearance of diverse morphological forms in Proteus vulgaris OX-19 (Stempen and Hutchinson, 1951) stimulated interest in a cytological investigation of the organism to compare the chromatinic structures in the large bodies and other "atypical" forms with those in the "normal" rods. Cytological studies on large bodies of Proteus have been previously reported by KlienebergerNobel (1949), Tul...

The Action of Hepatic, Renal and Other Cells on Phenol and Indol, under Normal and Pathological Conditions

I t is the object of this communication to give the results of experimental observations on the behavior of various animal cells toward certain substances belonging to the aromatic type, notably phenol and indol. ]:he inquiry was prompted by the interest wMch attaches to a Study of the natural defenses of the organism against various ]~inds of damage through chemical agencies. Prominent among t...