CH. XVI.] 



ACTINOMYCES. 



149 



which afterwards was identified as actinomyces, and Ponfick 1 

 has clearly established that in man it is not a rare disease. 



FJQ. 107. FROM A SECTION THROUGH THE TONGUE OF A Cow DEAD OF 



ACTINOMYCOSIS. 



A nodule is shown composed of round cells, in the centre is the clump of 

 actinomyces surrounded by large transparent cells. Magnifying power 350. 



Fio. 108. A CLUMP OF ACTIXOMYCES MORE HIGHLY MAGNIFIED, 700. 



According to careful observations, Johne 2 succeeded in 

 transmitting the disease from cattle to cattle by inoculation, 



1 Die Actinomykose des Menschen, Berlin, 1881. 

 3 Deutsche Zeitschr.f Thiermedicin, vii. 1881. 



