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Children on Сall fours.Т Additional reports

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CHILDREN ON ‘ALL FOURS’
ADDITIONAL REPORTS
T W O FIGURES
The article on “Quadruped Progression in the Human
C.hild,” in the last number of this Journa1,l has evidently
aroused more than the usual attention, as a part result of
which I am able to report five additional cases. All these
five reports, moreover, come from well-educated parents and
give some interesting details which could hardly be obtained
by an outsider. My thanks are herewith tendered to all these
correspondents. The reports follow.
CASE I
I am taking the liberty of calling your attention to the case of one
of my daughters.
At the age of about 104 months she began to adopt the practice of
running on all fours and within a couple of weeks attained great
proficiency and high speed. Before she was a year old she went u p
stairs and down stairs backward in the same way. A t the same age
she would stand erect but did not adopt the practice of walking on
two feet until over 14 months old. She adopted her peculiar method
of locomotion without instruction and so fa r as we know without
suggestion. She was in other respects a normal child and is now a t
the age of nineteen a senior in RadclXe College.
I enclose a photograph showing the child in action while running
rapidly as the blurring of the moving hand and foot shows.
v. t. y.
.....
CASE I1
I was much interested in an account of your article on babies that
run on all fours, because that is the way my own baby daughter
‘Am. J. Phys. Anthrop., 1927, X, no. 3, 347-354.
123
AMERICAN JOURNAL O F PHYSICAL ANTHROPOLWY, VOL. XI, NO.
OCTOBBR-DECENBER,
1927
1
124
ALEB
HRDLI~KA
Case I Girl, eleven months old, white, U. S. A. (old Amer.), running on
all fours.
Case I1 A girl, about eleven months old, white, U. 5. A. (old Amer.), running
on all fours.
CHILDREN
ON ‘ALL
FOURS’
125
moved about previous to walking. I am enclosing a small photograph.
You will notice that one foot is flat on the ground. I never thought
of this trait as being unusual until I read of your paper. The photograph is one of a series of snapshots I was taking. The baby was
constantly moving and hard to pose, so I just shot at random, hoping
to get some good pictures. This is one of the results.
The baby a t first propelled herself by sliding on her stomach, pushing with her hands and feet. She began this a t the age of 9 months.
A t the age of 104, she began walliing on her hands and feet, with
her knees off the ground. A t times, when moving slowly, or when
still, she had her knees on the floor. Most of the time, though, she
moved at her utmost speed, on hands and feet.
At the age of 10 months, she began pulling herself u p and walking
by leaning against the mall, or by holding on to furniture. A t 1year
and 2 weeks, she started walking by herself. She had good control,
no fear, and stepped right off. Unlike many babies who are wobbly
and fall after walking a short distance, this baby walked steadily,
could stop and stand still, o r t u r n around and walk in a different
direction at will. She could raise and lower herself a t will without
help.
Y. v. t.
.....
CASE: I11
I read with interest of your article on infants walking on all
fours.
I realized my child was unusual in this respect but was hardly
enough of a n egoist to realize he was so much so; I merely thanked
the gods that, by running on all fours he did not get the knees of his
stockings so dirty.
He started crawling when he was about ten months of age and
started walliing at fifteen months, though f o r about four months after
that he walked on all fours, when in a hurry. H e never crawled
as ordinary babies do, and people invariably laughed when they saw
him going around appearing very much similar to a bow-legged bull
pup. H e always sat u p and refused to move until the attention of
the laught,er was away from him.
I attributed his peculiar method of locomotion to never having
been around a baby who crawled in the regulation manner. He
was always with his sister who is two years his senior. H e is normal
in every other respect. . . . We are of the white race, Nordic t o be
explicit.
Sincerely,
MRS. L. L. ABERCROMBIE.
2631 14th Avr., W.,
Smttle, Wadi.
126
ALES
HRDLI~KA
CASES IV, T
I have been very much interested in your paper in the last number
of the Journal of Physical Anthropology on plantigrade progression
in infants. You may be int.erested in two other cases which 1 have
seen. Of my three children, the oldest, when about eight or nine
months old, progressed by irregular rolling and sliding motions.
H e next learned to stand, supporting himself by furniture. Then he
crept in the normal manner for perhaps a month, after which for a
period of a month to six weeks, he walked on all fours in the manner
described for some of your cases. Neither of the other children
ever showed any inclination in this direction.
This last summer in the Sierras I saw a Washoe Indian baby girl
of about a year who r a n around actively, and not ungracefully, on
all fours. She was much more natural in her actions than was my
baby during the period when he progressed on all fours.
Very sincerely yours,
C. H. DANFORTH,
Stanford University.
BRIEF RI%XME
The total number of reported individual cases with this
physiological peculiarity now reaches eleven, of which five are
white American. No sex difference is as yet noticeable; the
white children comprise two boys and two girls. The peculiarity begins to manifest itself evidently about the t,enth
month and may last a variable time. And so f a r but single
instances of the phenomenon have been reported from individual families. More reports are desirable.
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