138 MICRO-ORGANISMS AND DISEASE. [CHAP. 



not occur, and they spread probably only by way of the 

 lymphatics. 



Inoculation experiments on domestic animals and monkeys 

 have hitherto failed. 1 Damsch 2 maintains, however, that 



FIG. 71. BACILLI OF THE SAME PREPARATION AS IN PRECEDING FIGURE. 

 More highly magnified, 1000. 



he was able, by inoculation with leprous tissue into the 

 peritoneal cavity and into the skin, to produce in cats a 



FIG. 72. CELLS OF THE LEPROSY NODULES OF<MAN, FILLF,D WITH THE 

 LEPROSY BACILLI (AFTER NEISSER). 



distinct increase and sprouting of the bacilli. Preparations 

 of leprous nodules of the larynx and skin made by my 



FIG. 73. FROM AN ARTIFICIAL CULTURE OF BACILLUS OF LEPROSY 

 (AFTER NEISSER). 



friend, Mr. A. Lingard, and stained with Weigert's solution 

 of magenta and vesuvin, showed the leprosy-bacilli com- 

 pletely filling all the cells, small and large, spherical and 



1 Kobner, Virchow's Archiv, vol. Ixxxviii. ; Hansen, ibidem, vol. xc 



2 Virchow's Archiv, vol. xcii. 



