so mildly affected, spontaneous recovery occurs.

Symptomatology.--Lameness is the first manifestation of shoulder
atrophy, and in many cases where lameness is slight, the veterinarian
may fail to discover the exact nature of the trouble if he is not very
proficient as a diagnostician of lameness or if he is careless in taking
into consideration obtainable history, age of the subject, etc. Because
of the fact that the average layman believes that practically every case
of fore-leg lameness wherein it is not obvious that the cause is
elsewhere, is due to a shoulder affection of some kind, we may be too
hasty in giving the client assurance that no "sweeny" exists. In some of
these cases where a diagnosis of "shoulder lameness" has been made and
the client has been assured that no sweeny exists, the patient is
returned in about a week and there is then marked atrophy of one or both
of the spinatus muscles.

A mixed type of lameness characterizes this affection, and in the
average case there exists little evidence of local pain. The salient
points in recognizing the condition are a consideration of history if
obtainable; age of the subject; finding slight local soreness, by
carefully manipulating the muscles which are usually involved; noting
the character of the lameness if any is present; and where atrophy is
evident, of course, the true condition is obvious.

Treatment.--Subcutaneous injections of equal parts of refined oil of
turpentine and alcohol, with a suitable hypodermic syringe, is a
practical and ordinarily effective treatment. From five to fifteen cubic
centimeters (the quantity varies with the size of the animal), of this
mixture is injected into the atrophied parts at different points, taking
care to introduce only about one to two cubic centimeters at each point