G. Carl Huber 403 
arteries through their severaji branchings to their termination, including 
the branches which go to the glomeruli, the glomeruli themselves, the 
branches leaving the glomeruli, and often the capillary plexuses formed 
by these, the conclusion seems warranted that practically all of the blood 
found in the capillaries surrounding the different portions of the urinifer- 
ous tubules is blood that has first passed through the glomerular vessels. 
This was so clearly stated by Bowman‘ many years ago that it seems but 
just to use his own words to give further emphasis to this point. In 
Bowman’s classical contribution to the anatomy of the kidney is found 
Fic. 4. Corrosion preparation of terminal arterial branches of kidney of 
rabbit. 
the statement: ‘ According to my own _ observations, the circulation 
through the kidney may be stated te be as follows:—AII the blood of the 
renal artery (with the exception of a small quantity distributed to the 
capsule, surrounding fat, and the coats of the larger vessels) enters the 
capillary tufts of the Malpighian bodies; thence it passes into the capillary 
plexus surrounding the uriniferous tubes and it finally leaves the organ 
through the branches of the renal vein.” With this clear and correct 
statement of facts, dating back to 15842, it is somewhat surprising that 
even at the present time, there should be a question as to the existence or 
non-existence of terminal branches of the renal artery which end in 
“Bowman: On the Structure and Use of the Malpighian Bodies of the 
Kidney, with Observations on the Circulation through that Gland. Philosoph. 
Trans. of the Royal Society of London, 1842, p. 57. 
