1/2 MICRO-ORGANISMS AND DISEASE. [CHAP. 



FIG. 93. FROM THE SAME KIDNEY AS IN PRECEDING FIGURE. 



a. Large artery filled with caseous matter, and in it numerous tubercle-bacilli. 



b. Coat of artery. 



c. Nuclei of the tuberculous new growth. d. A Malpighian corpuscle. 



Magnifying power about 500. 



FIG. 94. FROM THE JUICE OF LUPUS-TISSUE PREPARED AFTER THE KOCH- 



WEIGERT METHOD OF DRYING A THIN LAYER ON A COVER-GLASS. 



Magnifying power about 700. 



