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Within the limitations of the material, 208 subjects-and the methods under consideration, it has been found that: [ABSTRACT FROM AUTHOR]

Within the limitations of the experimental material under consideration the following points have been established. A standardized method for surface tension determinations on lactobacilli has been described and applied to 12 different strains of L. acidophilus and L. bulgaricus. With sodium ricinoleate 3 strains of L. acidophilus of proven therapeutic value grew in a medium depressed below 36 dynes, while 2 strains of L. bulgaricus proven by us incapable of intestinal implantation were inhibited at 43.2 dynes. The average critical point for all cultures labelled L. acidophilus was 37.9 dynes and for L. bulgaricus 43.6 dynes. With sodium oleate L. acidophilus grew to 23.8 dynes while L. bulgaricus was inhibited at 41 dynes. The surface tension of inoculated and incubated cultures in higher than that of uninoculated controls kept in the ice box. Surface tension tests on lactobacilli compare favorably with sugar fermentation but offer a more accurate method of differentiation, agree with clinical trials, and may possibly serve as a substitute for the latter in determining therapeutic efficiency. [ABSTRACT FROM AUTHOR]

A case of discrete benign ulcer of the gall bladder of obscure etiology is presented. [ABSTRACT FROM AUTHOR]