. The bacteriology of the eye. it. The work of Silberschmidt shows that the variety known as Actinomyces bovisis not the only one which takes part in the formation of concrements. In 1900 heobtained two series of cultures; till then every attempt at cultivation had mis-carried, or else, as in the two first cases of Kastalsky and Axenfeld, was not com-plete enough for thorough identification. In fresh and unstained preparations Silberschmidt found fine Gram-positivesegmented filaments, and along with them elements resembling cocci. Very fewbranches occurred, and here and there were slightly thi
. The bacteriology of the eye. it. The work of Silberschmidt shows that the variety known as Actinomyces bovisis not the only one which takes part in the formation of concrements. In 1900 heobtained two series of cultures; till then every attempt at cultivation had mis-carried, or else, as in the two first cases of Kastalsky and Axenfeld, was not com-plete enough for thorough identification. In fresh and unstained preparations Silberschmidt found fine Gram-positivesegmented filaments, and along with them elements resembling cocci. Very fewbranches occurred, and here and there were slightly thickened ends to the radial arrangement of fibres with clubbed ends could be seen, nor were thefilaments coiled. 19 290 BACTERIOLOGY OF THE EYE Cultures could only be obtained anaerobically, and growth only occurred afterseveral days in the incubator. At the bottom of the agar tube the coloniesdeveloped in the form of round greyish-white smooth granules. In a stab culturethe neighbourhood of the stab became Fig. 60.—Axenfeld, Case II. Preparation of the s~ / 7VTt*m~ S* %ofC^\<^ «*? v 0
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