circumstance, however, is not seen in girls, in
whom menstruation is sometimes to be distinguished by an odor somewhat
similar to that of leather. Old age produces an odor similar to that of
dry leaves, and there have been persons who declared that they could
tell approximately the age of individuals by the sense of smell.

Certain tribes and races of people have characteristic odors. Negroes
have a rank ammoniacal odor, unmitigated by cleanliness; according to
Pruner-Bey it is due to a volatile oil set free by the sebaceous
follicles. The Esquimaux and Greenlanders have the odors of their
greasy and oily foods, and it is said that the Cossacks, who live much
with their horses, and who are principally vegetarians, will leave the
atmosphere charged with odors several hours after their passage in
numbers through a neighborhood. The lower race of Chinamen are
distinguished by a peculiar musty odor, which may be noticed in the
laundry shops of this country. Some people, such as the low grade of
Indians, have odors, not distinctive, and solely due to the filth of
their persons. Food and drink, as have been mentioned, markedly
influence the odor of an individual, and those perpetually addicted to
a special diet or drink have a particular odor.

Odor after Coitus.--Preismann in 1877 makes the statement that for six
hours after coitus there is a peculiar odor noticeable in the breath,
owing to a peculiar secretion of the buccal glands. He says that this
odor is most perceptible in men of about thirty-five, and can be
discerned at a distance of from four to six feet. He also adds that
this fact would be of great medicolegal value in the early arrest of
those charged with rape. In this connection the analogy of the breath
immediately after coitus to the odor of chloroform has been mentioned.
The same article states that after coitus naturally foul breath becomes
sweet.

The emotions are said to have a decided influence on the odor of an
individual. Gambrini, quoted by Monin, mentions a young man,
unfortunate in love and violently jealous, whose whole body exhaled a
sickening, pernicious, and fetid odor. Orteschi met a young lady who,
without any possibility of fraud, exhaled the strong odor of vanilla
from the commissures of her fingers.

Rayer speaks of a woman under his care at the Hopital de la Charite
affected with chronic peritonitis, who some time before her death
exhaled a very decided odor of musk. The smell had be