red sweat, was published
by Yonge of Plymouth in 1709. In this affection the colored sweating
appears symmetrically in various parts of the body, the parts commonly
affected being the cheeks, forehead, side of the nose, whole face,
chest, abdomen, backs of the hands, finger-tips, and the flexors,
flexures at the axillae, groins, and popliteal spaces. Although the
color is generally black, nearly every color has been recorded. Colcott
Fox reported a genuine case, and Crocker speaks of a case at Shadwell
in a woman of forty-seven of naturally dark complexion. The bowels were
habitually sluggish, going three or four days at least without action,
and latterly the woman had suffered from articular pains. The
discolored sweat came out gradually, beginning at the sides of the
face, then spreading to the cheeks and forehead. When seen, the upper
half of the forehead, the temporal regions, and the skin between the
ear and malar eminence were of a blackish-brown color, with slight
hyperemia of the adjacent parts; the woman said the color had been
almost black, but she had cleaned her face some. There was evidently
much fat in the secretion; there was also seborrhea of the scalp.
Washing with soap and water had very little effect upon it; but it was
removed with ether, the skin still looking darker and redder than
normal. After a week's treatment with saline purgatives the
discoloration was much less, but the patient still had articular pains,
for which alkalies were prescribed; she did not again attend. Crocker
also quotes the case of a girl of twenty, originally under Mackay of
Brighton. Her affection had lasted a year and was limited to the left
cheek and eyebrow. Six months before the patch appeared she had a
superficial burn which did not leave a distinct scar, but the surface
was slightly granular. The deposit was distinctly fatty, evidently
seborrheic and of a sepia-tint. The girl suffered from obstinate
constipation, the bowels acting only once a week. The left side flushed
more than the right In connection with this case may be mentioned one
by White of Harvard, a case of unilateral yellow chromidrosis in a man.
Demons gives the history of a case of yellow sweat in a patient with
three intestinal calculi.

Wilson says that cases of green, yellow, and blue perspiration have
been seen, and Hebra, Rayer, and Fuchs mention instances. Conradi
records a case of blue perspiration on one-half the scrotum. Chojnowski
records a