. 52 MICRO-ORGANISMS AND DISEASE. [CHAP. 



are identical with the micrococci of human pneumonia. And 

 they further assert that artificial cultures of the micrococci 









Fio. 22. FROM A PREPARATION OF Br,oor> OF R \BBIT DEAD AFTER INOCULATION 

 WITH SPUTUM OF ACUTE CROUPOUS PNEUMONIA. 



Weigert-Koch method, stained with gentian violet. Numbers of blood discs, 



between them oval microcooci, surrounded by hyaline capsules. 



Magnifying power 700. 



derived either from human pneumonia or from pleuro-pneu- 

 monia of cattle, produce in cattle the typical pleuro-pneumonia. 



Fio 28 -FROM A PREPARATION OF PLEURAL EXUDATION OP A MOUSE DEAD 



AFTER INOCULATION WITH BLOOD OF RABBIT MENTIONED IN PRECEDING IIGUKE. 



Magnifying power 700. 



From my own observations I have reason to doubt the accuracy 

 of these statements. 



