PURULENT INFECTION—PYOHAMIA. 175 
surface, scarifications or deep cauterizations which permit the exit of 
the inflammatory exudation and open to antiseptics admission to the 
deep layer of the dermis, the subcutaneous region and the lymphatic 
radicules where streptococci are: numerous. As soon as fluctuation 
indicates the presence of abscesses in the neighborhood of the wounds, 
along the lymphatic vessels or in their glands, these abscesses must 
be immediately opened and treated antiseptically. Diffuse swellings, 
which sometimes occur on the legs, should be carefully watched, and if 
the formation of deep abscesses is suspected they should be probed 
with fine punctures. Scarifications or deep point firing, tepid antisep- 
tic irrigations or baths are still the best means to prevent gangrene of 
highly inflamed tissues ; if, however, sloughs take place, the treatment 
should be completed by that for moist gangrene. 
Complications of the viscera, of the large serous membranes, and of 
articulations are treated by methods especially marked out for each of 
those. ; 
Slight cases receive for general treatment tonic douches, light 
purgatives or alkalines. The other cases receive antiseptics, alcohol, 
extract of cinchona, and sulphate of quinine, according to the species 
under treatment. 
VII. 
PURULENT INFECTION—PYOHAMIA. 
Produced by the penetration of pyogenic microbes into the circula- 
tion and their diffusion through the organism, purulent infection— 
pyohemia—is a complication of suppurative wounds. While septica- 
mia is ordinarily a precocious accident of traumas, pyohemia is a late 
episode of the same, but not the less dangerous. Likely to occur in all 
species, particularly common in horses, rather rare in dogs, swine and 
sheep, it is exceptional in cattle, goats and birds. 
It may break out at any moment with extensive, deep, anfractuous 
wounds, which suppurate abundantly; with sinuous fistula, having 
several tracts which present necrotic lesions of synovial membranes, 
tendons and bones; with suppuration of the synovial membranes ; or 
with suppurative inflammation of the veins or of the lymphatic trunks. 
In horses, phlebitis of the jugular, poll-evils, disease of the withers, 
tendinous quittor, purulent arthritis and synovitis, gangrene of the 
tegumentary membrane of the foot and the caries of the os pedis are the 
surgical affections whica are mostly accompanied by it. Independently 
of the ordinary purulent absorption, there exists in that species specific 
pyohemias related to some infections (distemper, glanders). Tn 
cattle, it has been observed as a complication of extensive suppurating 
