minutes.

If _abscess_ threatens, it may be favored by fomentation and opened as soon
as fluctuation from finger to finger shows the formation of matter at a
point formerly hard. The wound may bleed freely, and there is a risk of
opening a milk duct, yet relief will be obtained; also a dressing twice
daily with a lotion of carbolic acid 1 part, water 20 parts, and glycerin 1
part will suffice to keep the wound clean and healthy.

_Gangrene_ of the affected part is often fatal. It demands antiseptics
(chlorid of zinc, 1 dram to 1 quart water) applied frequently to the part,
or, if the case can not be attended, smear the affected quarter with Venice
turpentine, melted, or even wood tar. Antiseptic tonics (tincture of
chlorid of iron, 4 drams) may also be given four times daily in a quart of
water.

CONTAGIOUS MAMMITIS (CONTAGIOUS INFLAMMATION OF THE UDDER).

As stated in the last article, that form of inflammation of the udder which
attacks the gland ducts and follicles, causing deep-seated, hard, nodular
swellings, is often contagious. Franck has demonstrated this by injecting
into the milk ducts in different cows (milking and dry) the pus from the
bags of cows affected with mammitis, or the liquids of putrid flesh, or
putrid blood, and in every case he produced acute inflammation of the gland
tissue within twenty-four hours. He thinks that in ordinary conditions the
septic germ gains access by propagating itself through the milk, filling
the milk canal and oozing from the external orifice. He points to this as a
reason why dry cows escape the malady, though mingling freely with the
sufferers, and why such dry cows do not suffer from inflammation of the
gland tissue when attacked with foot-and-mouth disease. In this last case
it is evident that it is not simply the inoculation with the milker's hand
that is lacking, for the skin of the bag is attacked, but not its
secreting, glandular parts. Now that in any case of abscess we look for the
cause in the chain forms of globular bacteria (_Streptococcus pyogenes_),
in the cluster form of white, globular bacteria (_Staphylococcus pyogenes
albus_), and in the golden and citron-yellow forms of clustered globular
bacteria (_Staphylococcus pyogenes aureus_ and _Staphylococcus pyogenes
citreus_), the formation of pus gives presumptive evidence of the action of
one or more of these germs. So in cases of mortification of the bag; in the
very occurrence there is fair circumstant