558 
J. O. WAKELIN r.ARRATT. 
•■ipproxiinately seventy, the variations met witli not appear- 
ing to be considerable. The identity of the pigmented 
granules with mitochondria at once becomes obvious 
when a comparison of the two is made. The appearance of 
liver-cells, stnined with hmmatoxylin, containing the former 
is indistinguishable from that of normal liver-cells similarly 
stained after treatment with mitochondrial fixatives (such ns 
Benda’s modification of Flemming’s solution). In both cases 
the mitochondria appear of a deep black coloni-. 
In sections of the kidney of healt,hy adult rabbits fixed in 
Fig. 5. 
Section of kidney of liealtliy rahfiit at junction of cortex and 
medulla. The cells of the convoluted tul)ules shown in the 
section present a i>ranu'ar aspect, due to the presence in the 
cytoplasm of deeply stained chondriosomes, the nuclei tending- 
to become obscured in consequence. A few red blood-cells, 
deeply stained, are seen lying hetw-een the tulndes. In the 
lumen of three of the tuhufes hyaline material is seen. Fixed 
in Flemming's solution. Stained by Heidenhain's iron-alum 
hematoxylin method. X 200. 
Benda’s solution, and stained by Heidenhain’s iron-alum 
hmniatoxylin method, the chondriosomes which are met with 
in the cells of the convoluted tiibnles^ assume the form of rods 
and grannies. In some of the cells only mitochondi ia are 
seen ; in others — and this is more usually the case — chou- 
driokonts ai'e also met with, situated near the basement mem- 
‘ 1 have not met with chondriosomes in the cells of the glomeruli. 
