. The bacteriology of the eye. TUS 289 Doubts as to the correctness of the new view are aroused by the anomalousclinical appearances, and by the general agreement that Actinomyces bovisbelongs to the family of the Streptotkricece, the members of which can resembleeach other very fully in their morphology, though in other respects they areessentially different. Lachner and Sandoval, Axenfeld and Kastalsky, insist thatexhaustive examinations of cultures are necessary before these organisms can bedefined with certainty. At present it is better to speak of Streptotkricece. If weconsider the Strept
. The bacteriology of the eye. TUS 289 Doubts as to the correctness of the new view are aroused by the anomalousclinical appearances, and by the general agreement that Actinomyces bovisbelongs to the family of the Streptotkricece, the members of which can resembleeach other very fully in their morphology, though in other respects they areessentially different. Lachner and Sandoval, Axenfeld and Kastalsky, insist thatexhaustive examinations of cultures are necessary before these organisms can bedefined with certainty. At present it is better to speak of Streptotkricece. If weconsider the Streptothricece as Actinomycetes, then the concretions can be spokenof as Actinomycosis. We should not conclude that these organisms have beenproved to be identical with the variety Act. Iwminis sen bovis. Van der Straetengoes still further, and considers that this affection is only a pseudo-actinomycosis,because the clinical picture is so different, and the typical refractile bodies arewanting; Bourgeois expresses the same Fig. 59.—Axenfeld, Case I. Anaerobic Agar Culture. Axenfeld and Cahn have shown that this exclusion of the Actinomycetes goes toofar in the other direction, for the reasons brought forward by Van der Straeten donot definitely exclude the presence of this organism (see p. 293). The furtherexamination of this case by Awerbach has shown that it agrees with the Actino-myces bovis in many particulars, so that the name is rightly applied to 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 occu
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