Observations on two very large Bacteria, Caryophanon latum Peshkoff and Lineola longa (nomen provisorium)

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Abstract
SUMMARY: Working details are given of a method for producing streptomycin by the surface culture of Streptomyces griseus in pint milk bottles on a papain digest of beef+meat extract+glucose+mineral salt medium. Streptomycin titres in the crude culture filtrates of 250 μg./ml. or more were obtained after 10-14 days' growth.