the horse’s foot. 
347 
base, are of a yellowish-white color, less movable, shortened and 
shriveled. The inserting tendinous cords of the valves are now 
unchanged, now shortened, causing insufficiency. 
Enlargement of the Heart. 
The enlargement of the heart is synonymous with eccentric 
hypertrophy; still expansion without hypertrophy is also present. 
Sometimes with passive dilatation the heart attains a considerable 
circumference. Cases of developed total enlargement are not 
very numerous. More frequently is the vena cava at the aortic 
ventricle greatly expanded. Sometimes hypertrophy is united 
with atrophy of other divisions of the heart so that different 
changes in volume appear combined^ 
Expansion of the heart takes place more frequently diago¬ 
nally than perpendicularly, whereby it attains a rounded broad 
form. By extension united with atrophy, the change of the sub¬ 
stance of the heart is mostly uniform and often reaches such an 
astounding reduction in substance that it can be scarcely believed 
how such material could carry on its function. The muscle of 
the heart is sometimes colored purple-red, dark brown-red, at the 
same time relaxed in a high degree, tender and easily lacerated; 
the walls of the heart collapse after they have been cut open. 
If softening and attenuation of the muscular substance be pres¬ 
ent, this produces the immediate cause of rupture. 
{To be continued.) 
THE HORSE’S FOOT. 
By W. Bryden, V.S. 
All domesticated animals have special qualities which make 
them useful or valuable, and just in proportion as such qualities 
can be developed by cultivation or training do certain breeds or 
individuals rank above their fellows. 
In a state of nature such animals are just what their surround¬ 
ings make them. Although they may be coarser in form, yet 
there is a rough harmony in their organization which adapts them 
to the circumstances their existence demands, and if the test could 
