URETHRAL CALCULI IN RUMINANTS. 
365 
3 inches in diameter, was removed. The urethral wound was twice 
sutured, but the stitches tore out on each occasion ; nevertheless the 
parts healed so far that the horse returned to duty in two months, and 
Fig. 165.—Vesical calculus composed of phosphate and oxalate of lime. Weight, 3| ounces ; 
circumference, inches. (Chinniali’s case.) 
Fig. 166. — Cystic calculus removed by Fig. 167.—Section of above 
V.-Lieut. Walker. calculus. 
three months later urine ceased altogether to be passed by the fistula. 
(The Veterinarian, p. 299, May, 1898.) 
(2.) UEETHRAL CALCULI IN RUMINANTS. 
Of all animals the bull suffers most from calculi. Formed in the 
bladder, they enter the urethra during urination, and partly on account 
of its comparatively narrow lumen, partly of its peculiar course, remain 
fast (fig. 168). 
