Odors are powerful stimulants to the whole nervous system, causing, like
other stimulants, an increase of energy which, if excessive or prolonged,
leads to nervous exhaustion. Thus, it is well recognized in medicine that
the aromatics containing volatile oils (such as anise, cinnamon,
cardamoms, cloves, coriander, and peppermint) are antispasmodics and
anæsthetics, and that they stimulate digestion, circulation, and the
nervous system, in large doses producing depression. The carefully
arranged plethysmographic experiments of Shields, at the Johns Hopkins
University, have shown that olfactory sensations, by their action on the
vasomotor system, cause an increase of blood in the brain and sometimes in
addition stimulation of the heart; musk, wintergreen, wood violet, and
especially heliotrope were found to act strongly in these ways.[27]
Féré's experiments with the dynamometer and the ergograph have greatly
contributed to illustrate the stimulating effects of odors. Thus, he found
that smelling musk suffices to double muscular effort.
With a number of
odorous substances he has found that muscular work is temporarily
heightened; when taste stimulation was added the increase of energy,
notably when using lemon was "colossal." A kind of
"sensorial
intoxication" could be produced by the inhalation of odors and the whole
system stimulated to greater activity; the visual acuity was increased,
and electric and general excitability heightened.[28]
Such effects may be
obtained in perfectly healthy persons, though both Shields and Féré have
found that in highly nervous persons the effects are liable to be much
greater. It is doubtless on this account that it is among civilized
peoples that attention is chiefly directed to perfumes, and that under the
conditions of modern life the interest in olfaction and its study has been
revived.
It is the genuinely stimulant qualities of odorous substances which led to
the widespread use of the more potent among them by ancient physicians,
and has led a few modern physicians to employ them still. Thus, vanilla,
according to Eloy, deserves to be much more frequently used
therapeutically than it is, on account of its excitomotor properties; he
states that its qualities as an excitant of sexual desire have long been
recognized and that Fonssagrives used to prescribe it for sexual
frigidity.[29]
FOOTNOTES:
[26] The opinions of psychologists concerning the æsthetic significance of
smell, not on the whole very favorable, are brought together and discussed
by J.V. Volkelt, "Der Æsthetische Wert der niederen Sinne," _Zeitschrift
für Psychologie und Physiologie der Sinnesorgane_, 1902, ht. 3.
[27] T.E. Shields, "The Effect of Odors, etc., upon the Blood-flow,"
_Journal of Experimental Medicine_, vol. i, November, 1896. In France, O.
Henry and Tardif have made somewhat similar experiments on respiration and
circulation. See the latter's _Les Odeurs et les Parfums_, Chapter III.
[28] Féré, _Sensation et Mouvement_, Chapter VI; ib., _Comptes Rendus de
la Société de Biologie_, November 3, December 15 and 22, 1900.
[29] Eloy, art. "Vanille," _Dictionnaire Encyclopédique des Sciences
Médicales_.
III.
The Specific Body Odors of Various Peoples--The Negro, etc.--The
European--The Ability to Distinguish Individuals by Smell--The Odor of
Sanctity--The Odor of Death--The Odors of Different Parts of the Body--The
Appearance of Specific Odors at Puberty--The Odors of Sexual
Excitement--The Odors of Menstruation--Body Odors as a Secondary Sexual
Character--The Custom of Salutation by Smell--The Kiss--
Sexual Selection
by Smell--The Alleged Association between Size of Nose and Sexual
Vigor--The Probably Intimate Relationship between the Olfactory and
Genital Spheres--Reflex Influences from the Nose--Reflex Influences from
the Genital Sphere--Olfactory Hallucinations in Insanity as Related to
Sexual States--The Olfactive Type--The Sense of Smell in Neurasthenic and
Allied States--In Certain Poets and Novelists--Olfactory Fetichism--The
Part Played by Olfaction in Normal Sexual Attraction--In the East,
etc.--In Modern Europe--The Odor of the Armpit and its Variations--As a
Sexual and General Stimulant--Body Odors in Civilization Tend to Cause
Sexual Antipathy unless some Degree of Tumescence is Already Present--The
Question whether Men or Women are more Liable to Feel Olfactory
Influences--Women Usually more Attentive to Odors--The Special Interest in
Odors Felt by Sexual Inverts.
In approaching the specifically sexual aspect of odor in the human species
we may start from the fundamental fact--a fact we seek so far as possible
to disguise in our ordinary social relations--that all men and women are
odorous. This is marked among all races. The powerful odor of many, though
not all, negroes is well known; it is by no means due to uncleanly habits,
and Joest remarks that it is even increased by cleanliness, which opens
the pores of the skin; according to Sir H. Johnston, it is most marked in
the armpits and is stronger in men than in women. Pruner Bey describes it
as "ammoniacal and rancid; it is like the odor of the he-goat." The odor
varies not only individually, but according to the tribe; Castellani
states that the negress of the Congo has merely a slight
"_goût de
noisette_" which is agreeable rather than otherwise.
Monbuttu women,
according to Parke, have a strong Gorgonzola perfume, and Emin told Parke
that he could distinguish the members of different tribes by their
characteristic odor. In the same way the Nicobarese, according to Man, can
distinguish a member of each of the six tribes of the archipelago by
smell. The odor of Australian blacks is less strong than that of negroes
and has been described as of a phosphoric character. The South American
Indians, d'Orbigny stated, have an odor stronger than that of Europeans,
though not as strong as most negroes; it is marked, Latcham states, even
among those who, like the Araucanos, bathe constantly.
The Chinese have a
musky odor. The odor of many peoples is described as being of garlic.[30]
A South Sea Islander, we are told by Charles de Varigny, on coming to
Sydney and seeing the ladies walking about the streets and apparently
doing nothing, expressed much astonishment, adding, with a gesture of
contempt, "and they have no smell!" It is by no means true, however, that
Europeans are odorless. They are, indeed, considerably more odorous than
are many other races,--for instance, the Japanese,--and there is doubtless
some association between the greater hairiness of Europeans and their
marked odor, since the sebaceous glands are part of the hair apparatus. A
Japanese anthropologist, Adachi, has published an interesting study on the
odor of Europeans,[31] which he describes as a strong and pungent
smell,--sometimes sweet, sometimes bitter,--of varying strength in
different individuals, absent in children and the aged, and having its
chief focus in the armpits, which, however carefully they are washed,
immediately become odorous again. Adachi has found that the sweat-glands
are larger in Europeans than in the Japanese, among whom a strong personal
odor is so uncommon that "armpit stink" is a disqualification for the
army. It is certainly true that the white races smell less strongly than
most of the dark races, odor seeming to be correlated to some extent with
intensity of pigmentation, as well as with hairiness; but even the most
scrupulously clean Europeans all smell. This fact may not always be
obvious to human nostrils, apart from intimate contact, but it is well
known to dogs, to whom their masters are recognizable by smell. When Hue
traveled in Tibet in Chinese disguise he was not detected by the natives,
but the dogs recognized him as a foreigner by his smell and barked at him.
Many Chinese can tell by smell when a European has been in a room.[32]
There are, however, some Europeans who can recognize and distinguish their
friends by smell. The case has been recorded of a man who with bandaged
eyes could recognize his acquaintances, at the distance of several paces,
the moment they entered the room. In another case a deaf and blind mute
woman in Massachusetts knew all her acquaintances by smell, and could sort
linen after it came from the wash by the odor alone.
Governesses have been
known to be able when blindfolded to recognize the ownership of their
pupil's garments by smell; such a case is known to me.
Such odor is
usually described as being agreeable, but not one person in fifty, it is
stated, is able to distinguish it with sufficient precision to use it as a
method of recognition. Among some races, however this aptitude would
appear to be better developed. Dr. C.S. Myers at Sarawak noted that his
Malay boy sorted the clean linen according to the skin-odor of the
wearer.[33] Chinese servants are said to do the same, as well as
Australians and natives of Luzon.[34]
Although the distinctively individual odor of most persons is not
sufficiently marked to be generally perceptible, there are cases
in which it is more distinct to all nostrils. The most famous
case of this kind is that of Alexander the Great, who, according
to Plutarch, exhaled so sweet an odor that his tunics were soaked
with aromatic perfume (_Convivalium Disputationum_, lib. I,
quest. 6). Malherbe, Cujas, and Haller are said to have diffused
a musky odor. The agreeable odor of Walt Whitman has been
remarked by Kennedy and others. The perfume exhaled by many holy
men and women, so often noted by ancient writers (discussed by
Görres in the second volume of his _Christliche Mystik_) and
which has entered into current phraseology as a merely
metaphorical "odor of sanctity," was doubtless due, as Hammond
first pointed out, to abnormal nervous conditions, for it is well
known that such conditions affect the odor, and in insanity, for
instance, the presence is noted of bodily odors which have
sometimes even been considered of diagnostic importance. J.B.
Friedreich, _Allgemeine Diagnostik der Psychischen Krankheiten_,
second edition, 1832, pp. 9-10, quotes passages from various
authors on this point, which he accepts; various writers of more
recent date have made similar observations.
The odor of sanctity was specially noted at death, and was
doubtless confused with the _odor mortis_, which frequently
precedes death and by some is regarded as an almost certain
indication of its approach. In the _British Medical Journal_, for
May and June, 1898, will be found letters from several
correspondents substantiating this point. One of these
correspondents (Dr. Tuckey, of Tywardwreath, Cornwall) mentions
that he has in Cornwall often seen ravens flying over houses in
which persons lay dying, evidently attracted by a characteristic
odor.
It must be borne in mind, however, that, while every person has, to a
sensitive nose, a distinguishing odor, we must regard that odor either as
but one of the various sensations given off by the body, or else as a
combination of two or more of these emanations. The body in reality gives
off a number of different odors. The most important of these are: (1) the
general skin odor, a faint, but agreeable, fragrance often to be detected
on the skin even immediately after washing; (2) the smell of the hair and
scalp; (3) the odor of the breath; (4) the odor of the armpit; (5) the
odor of the feet; (6) the perineal odor; (7) in men the odor of the
preputial smegma; (8) in women the odor of the mons veneris, that of
vulvar smegma, that of vaginal mucus, and the menstrual odor. All these
are odors which may usually be detected, though sometimes only in a very
faint degree, in healthy and well-washed persons under normal conditions.
It is unnecessary here to take into account the special odors of various
secretions and excretions.[35]
It is a significant fact, both as regards the ancestral sexual connections
of the body odors and their actual sexual associations to-day, that, as
Hippocrates long ago noted, it is not until puberty that they assume their
adult characteristics. The infant, the adult, the aged person, each has
his own kind of smell, and, as Monin remarks, it might be possible, within
certain limits, to discover the age of a person by his odor. Jorg in 1832
pointed out that in girls the appearance of a specific smell of the
excreta indicates the establishment of puberty, and Kaan, in his
_Psychopathia Sexualis_, remarked that at puberty "the sweat gives out a
more acrid odor resembling musk." In both sexes puberty, adolescence,
early manhood and womanhood are marked by a gradual development of the
adult odor of skin and excreta, in general harmony with the secondary
sexual development of hair and pigment. Venturi, indeed, has, not without
reason, described the odor of the body as a secondary sexual
character.[36] It may be added that, as is the case with the pigment in
various parts of the body in women, some of these odors tend to become
exaggerated in sympathy with sexual and other emotional states.
The odor of the infant is said to be of butyric acid; that of old
people to resemble dry leaves. Continent young men have been said
by many ancient writers to smell more strongly than the unchaste,
and some writers have described as "seminal odor"--
an odor
resembling that of animals in heat, faintly recalling that of the
he-goat, according to Venturi--the exhalations of the skin at
such times.
During sexual excitement, as women can testify, a man very
frequently, if not normally, gives out an odor which, as usually
described, proceeds from the skin, the breath, or both. Grimaldi
states that it is as of rancid butter; others say it resembles
chloroform. It is said to be sometimes perceptible for a distance
of several feet and to last for several hours after coitus.
(Various quotations are given by Gould and Pyle, _Anomalies and
Curiosities of Medicine_, section on "Human Odors,"
pp. 397-403.)
St. Philip Neri is said to have been able to recognize a chaste
man by smell.
During menstruation girls and young women frequently give off an
odor which is quite distinct from that of the menstrual fluid,
and is specially marked in the breath, which may smell of
chloroform or violets. Pouchet (confirmed by Raciborski, _Traité
de la Menstruation_, 1868, p. 74) stated that about a day before
the onset of menstruation a characteristic smell is exuded.
Menstruating girls are also said sometimes to give off a smell of
leather. Aubert, of Lyons (as quoted by Galopin), describes the
odor of the skin of a woman during menstruation as an agreeable
aromatic or acidulous perfume of chloroform character. By some
this is described as emanating especially from the armpits.
Sandras (quoted by Raciborski) knew a lady who could always tell
by a sensation of faintness and _malaise_--
apparently due to a
sensation of smell--when she was in contact with a menstruating
woman. I am acquainted with a man, having strong olfactory
sympathies and antipathies, who detects the presence of
menstruation by smell. It is said that Hortense Baré, who
accompanied her lover, the botanist Commerson, to the Pacific
disguised as a man, was recognized by the natives as a woman by
means of smell.
Women, like men, frequently give out an odor during coitus or
strong sexual excitement. This odor may be entirely different
from that normally emanating from the woman, of an acid or
hircine character, and sufficiently strong to remain in a room
for a considerable period. Many of the ancient medical writers
(as quoted by Schurigius, _Parthenologia_, p. 286) described the
goaty smell produced by venery, especially in women; they
regarded it as specially marked in harlots and in the newly
married, and sometimes even considered it a certain sign of
defloration. The case has been recorded of a woman who emitted a
rose odor for two days after coitus (McBride, quoted by Kiernan
in an interesting summary, "Odor in Pathology,"
_Doctor's
Magazine_, December, 1900). There was, it is said (_Journal des
Savans_ 1684, p. 39, quoting from the _Journal d'Angleterre_) a
monk in Prague who could recognize by smell the chastity of the
women who approached him. (This monk, it is added, when he died,
was composing a new science of odors.) Gustav Klein (as quoted by Adler, _Die Mangelhafte Geschlechtsempfindungen des Weibes_, p. 25) argues that the
special function of the glands at the vulvar orifice--the
_glandulæ vestibulares majores_--is to give out an odorous
secretion to act as an attraction to the male, this relic of
sexual periodicity no longer, however, playing an important part
in the human species. The vulvar secretion, however, it may be
added, still has a more aromatic odor than the vaginal secretion,
with its simple mucous odor, very clearly perceived during
parturition.
It may be added that we still know extremely little concerning
the sexual odors of women among primitive peoples.
Ploss and
Bartels are only able to bring forward (_Das Weib_, 1901, bd. 1,
p. 218) a statement concerning the women of New Caledonia, who,
according to Moncelon, when young and ardent, give out during
coitus a powerful odor which no ablution will remove. In abnormal
states of sexual excitement such odor may be persistent, and,
according to an ancient observation, a nymphomaniac, whose
periods of sexual excitement lasted all through the spring-time,
at these periods always emitted a goatlike odor. It has been said
(G. Tourdes, art. "Aphrodisie," _Dictionnaire Encyclopédique des
Sciences Médicales_) that the erotic temperament is characterized
by a special odor.
If the body odors tend to develop at puberty, to be maintained during
sexual life, especially in sympathy with conditions of sexual disturbance,
and to become diminished in old age, being thus a kind of secondary sexual
character, we should expect them to be less marked in those cases in which
the primary sexual characters are less marked. It is possible that this is
actually the case. Hagen, in his _Sexuelle Osphrésiologie_, quotes from
Roubaud's _Traité de l'Impuissance_ the statement that the body odor of
the castrated differs from that of normal individuals.
Burdach had
previously stated that the odor of the eunuch is less marked than that of
the normal man.
It is thus possible that defective sexual development tends to be
associated with corresponding olfactory defect.
Heschl[37] has reported a
case in which absence of both olfactory nerves coincided with defective
development of the sexual organs. Féré remarks that the impotent show a
repugnance for sexual odors. Dr. Kiernan informs me that in women after
oöphorectomy he has noted a tendency to diminished (and occasionally
increased) sense of smell. These questions, however, await more careful
and extended observation.
A very significant transition from the phenomena of personal odor to those
of sexual attraction by personal odor is to be found in the fact that
among the peoples inhabiting a large part of the world's surface the
ordinary salutation between friends is by mutual smelling of the person.
In some form or another the method of salutation by applying the nose to
the nose, face, or hand of a friend in greeting is found throughout a
large part of the Pacific, among the Papuans, the Eskimo, the hill tribes
of India, in Africa, and elsewhere.[38] Thus, among a certain hill tribe
in India, according to Lewin, they smell a friend's cheek: "in their
language, they do not say, 'Give me a kiss,' but they say 'Smell me.'" And
on the Gambia, according to F. Moore, "When the men salute the women,
they, instead of shaking their hands, put it up to their noses, and smell
twice to the back of it." Here we have very clearly a recognition of the
emotional value of personal odor widely prevailing throughout the world.
The salutation on an olfactory basis may, indeed, be said to be more
general than the salutation on a tactile basis on which European
handshaking rests, each form involving one of the two most intimate and
emotional senses. The kiss may be said to be a development proceeding both
from the olfactory and the tactile bases, with perhaps some other elements
as well, and is too complex to be regarded as a phenomenon of either
purely tactile or purely olfactory origin.[39]
As the sole factor in sexual selection olfaction must be rare. It is said
that Asiatic princes have sometimes caused a number of the ladies to race
in the seraglio garden until they were heated; their garments have then
been brought to the prince, who has selected one of them solely by the
odor.[40] There was here a sexual selection mainly by odor. Any exclusive
efficacy of the olfactory sense is rare, not so much because the
impressions of this sense are inoperative, but because agreeable personal
odors are not sufficiently powerful, and the olfactory organ is too
obtuse, to enable smell to take precedence of sight.
Nevertheless, in many
people, it is probable that certain odors, especially those that are
correlated with a healthy and sexually desirable person, tend to be
agreeable; they are fortified by their association with the loved person,
sometimes to an irresistible degree; and their potency is doubtless
increased by the fact, to which reference has already been made, that many
odors, including some bodily odors, are nervous stimulants.
It is possible that the sexual associations of odors have been still
further fortified by a tendency to correlation between a high development
of the olfactory organ and a high development of the sexual apparatus. An
association between a large nose and a large male organ is a very ancient
observation and has been verified occasionally in recent times. There is
normally at puberty a great increase in the septum of the nose, and it is
quite conceivable, in view of the sympathy, which, as we shall see,
certainly exists between the olfactory and sexual region, that the two
regions may develop together under a common influence.
The Romans firmly believed in the connection between a large nose
and a large penis. "Noscitur e naso quanta sit hasta viro,"
stated Ovid. This belief continued to prevail, especially in
Italy, through the middle ages; the physiognomists made much of
it, and licentious women (like Joanna of Naples) were, it
appears, accustomed to bear it in mind, although disappointment
is recorded often to have followed. (See e.g., the quotations and
references given by J.N. Mackenzie, "Physiological and
Pathological Relations between the Nose and the Sexual Apparatus
in Man." _Johns Hopkins Hospital Bulletin_, No. 82, January,
1898; also Hagen, _Sexuelle Osphrésiologie_, pp. 15-19.) A
similar belief as to the association between the sexual impulse
in women and a long nose was evidently common in England in t