. Laboratory work in bacteriology. Bacteriology. 486 BACTEKIOLOGY. culture over the entire surface. The growth, as a rule, can easily be removed by adding- sterile water, and then gently agitating the liquid. The thick suspension can then be poured out into sterile flasks or drawn up into sterile bulb pipettes (p. 457). To measure out a dose of the growth Pfeiffer employs a small loop (Oese) that will hold about 2 mg. of the material. This would correspond to a loop about I mm. in diameter. A loopful of the growth is stirred up into 1 c.c. of bouillon. A fraction of a loop, as }4, is obtained

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