146 DISEASES or CATTLE. 



Plate X — Continued. 



in the kidneys, as is shown by the branches and network on the left 

 of the figure. The blood passes into the kidney in the artery (13), 

 then divides into branches which pass into the glomeruli (12) and 

 also forms network around the secreting tubules (11, 9). The 

 urine and salts pass fi-om these vessels through the cells lining the 

 tubules into the latter, and are discharged as described above. The 

 blood is again collected in veins drawn black in the figure. 



Fig. 2. Illustrates the manner in which the blood is distributed in the 

 glomerulus /, and also to the secreting tubules (e). 



Fig. 3. Shows the relation between the blood vessel in the glomerulus (e) 

 and the tubule which conducts the urine therein secreted from the 

 blood vessel; (c) represents a glomerulus from which the urinary 

 tubule has been removed. 

 Plate XI: 



Fig. 1. Calculus, or stone, from the kidney. These are located in the 

 pelvis or portion of the ureter receiving the urine. The prolongations 

 are casts of the branches of the pelvis. See tlie plates of the kidney 

 for further description. 



Fig. 2. Calculus made up of oxalate of lime magnified 215 times. 



Fig. 3. Phosphatic calculus containing a nucleus of uric acid, sawn through 

 to show concentric layers. 



Fig. 4. Straight forceps used in removing stones from the bladder. 



Fig. 5. Casts of the minute tubules of the kidney found in the urine in 

 various kinds of kidney disease. Highly magnified. 



