144 DISEASES OF CATTLE. 



Plate X. Microscopic anatomy of tlie Ividney — Continued. 



and salts pass from these vessels tlirougli tlie 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) 



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. Calculi of kidney and bladder. 



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



portion of the ureter receiving the urine. The prolongations are casts 



of the branches of the pelvis. See the 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, sawed 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. 



