44 
J. MYERS. 
P. S.— Since writing the above article on Osteo Porosis, made a 
post mortem examination on a half thorough-bred mare, which was 
prosprate upon good litter for almost three months. The owner on 
account of pietistical regards was opposed to having her killed. To 
avoid rupture of the flexor tendons, I warned him not to urge her to 
get up; however he could not resist the temptation, and she fractured 
the right os calcis. Through the agency of plaster paris, I obtained 
perfect union in four weeks; then another attempt was made to put 
her in the slings; finding this useless, was obliged to let her resume 
the recumbent posture. The next morning found the pit of the heels 
of the left hind and right fore feet swollen and painful; particularly 
when extension was brought into play. By the application of 
Schmucker’s fomentation the inflammation subsided. A complete 
rupture of flexor tendons had not taken place. Decubitus on both 
sides of the thorax, hip, etc., gave rise to such violent sympathetic 
fever, followed by emaciation and collapse, that life was brought to a 
termination. 
Disarticulated the left hind foot at the metatarso phalangeal ar¬ 
ticulation, which presented a violet blue hue at the articular cartilage. 
Posterior surface of the os coronce was very much roughened from a 
calcification into which the ligaments and tendons were intimately in¬ 
terwoven. The external condyle of the os suffraginis was ulcerated, 
the articular cartilage of the approximate glenoid cavity intact but of 
congestive appearance and very friable. The upper two-thirds of the 
posterior surface was covered with an osseous material one-fourtli of 
an inch thick, which stood in relation with the above named calcifica¬ 
tion. The distal interphalangeal articulation was but slightly affected. 
The external surface of the tendinous sheath and remaining soft tis¬ 
sues presented an indigo bjue color down to its extreme end, where it 
was found detached with a fragment of the coffin bone annexed. 
That the usual suppuration and consequent sloughing of the hoof did 
not occur, is probably due to the want of reaction, dependent upon 
lack of vitality. 
