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LIST OF CONTRIBUTORS.

VOL. XXVII.

JAMES M. ANDERS, M.D., LL.D., of Philadelphia.
HON. JOHN C. BELL, Esq., of Philadelphia.
L. NAPOLEON BOSTON, A.M., M.D., of Philadelphia.
JAMES BURNET, M.A., M.B., M.R.C.P. (Edin.), Edinburgh, Scotland.
CLARENCE G. CLARK, M.D., of New York.

EPHRAIM CUTTER, M.D., of New York.

CH. DAVID, M.D., of Paris, France.
JAMES J. EDMONDSON, M.D., of New York.
SENECA EGBERT, A.M., M.D., of Philadelphia.
L. WEBSTER FOX, A.M., M.D., of Philadelphia.
S. LEON GANS, M.D., of Philadelphia.

E. B. GLEASON, M.D., LL.D., of Philadelphia.

W. C. HOLLOPETER, A.M., M.D., of Philadelphia.
DWIGHT L. HUBBARD, M.D., of New York.
ERNEST LAPLACE, M.D., LL.D., of Philadelphia.
E. LESNE, M.D., of Paris, France.
H. LOWENBURG, A.M., M.D., of Philadelphia.

J. P. MANN, M.D., M.S., of Phila lphia.

JOHN A. MCGLINN, A.B., M.D., of Philadelphia.
CHARLES W. MCINTYRE, M.D., of New Albany, Ind.
CHARLES C. MILLER, M.D., of Chicago, Ill.
A. C. MORGAN, M.D., of Philadelphia.
G. M. NORRIS, of Baltimore, Md.

GEORGE W. PFROMM, Ph.G., M.D., of Philadelphia.

WILLIAM PICKETT, A.M., M.D., of Philadelphia.
EDWIN T. RANDALL, M.D., of Brooklyn, N. Y.
BYRON ROBINSON, B.S., M.D., of Chicago, Ill.
CHARLES ROSENTHAL, M.D., of Boston, Mass.

JOHN V. SHOEMAKER, M.D., LL.D., of Philadelphia.

HERBERT J. SMITH, Ph.G., M.D., of Philadelphia.
M. CLAYTON THRUSH, Ph.M., M.D., of Philadelphia.
HARRY TYLDESLEY, M.D., of Central City, Ky.
M. P. WARMUTH, A.B., M.D., of Philadelphia.

WILLIAM F. WAUGH, M.D., of Philadelphia.

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Original Communications.

From birth to pubertas the uterus THE UTERINE CIRCULATION: ITS

changes but little in its endometrium,

myometrium, perimetrium, or vascularity. PHASES IN DIFFERENT AGES

The uterus is in a quiescent stage, nonAND FUNCTIONS OF LIFE (PUERITAS, PUBERTAS, MENSTRU- developed ; almost with the same dimen

sions at 1 year old as it is at 10 years old. ATION, GESTATION, PUERPE

I will present three infant uteri to illusRIUM, SENESCENCE, AND DISEASE).

trate this phase of circulation in female

genitals. By BYRON ROBINSON, B.S., M.D., Fig. 1 presents the circulation by an CHICAGO.

X-ray of an infant uterus (see page 2). THE tractus genitalis is subject to vast

Fig. 2 presents the circulation of an inchanges during the different ages and func

fant's uterus by the method of celloidin tions of life. The circulation of the uterus injection and HNO, erosion. I carefully is for a definite purpose, and at the maxi

sketched it as it floated in the erosion fluid. mum circulation the genital manifestations

Fig. 3 represents the circulation of an are evident in the condition of the tractus

infant's uterus by the corrosion method and genitalis and in the adnexa—the mammary

later photographed. Much time was spent

The

to secure accurate, natural views. glands.

There are two phenomena connected with oligæmic uterine zones, the central longithe uterus which excite the wonder of all

tudinal (A., B., C.), the bilateral cervical

and the fundal are not marked as in mulobservers. These two phenomena are the circulation of the uterus and the method tipara. The muscular (myometrium) and which the uterus exercises in controlling its

the glandular (endometrium) elements, as own vascularity. At certain periods or

well as the circulatory apparatus (uterophases of life (pubertas, menstruation, ges

ovarian artery), are not developed.

The functions of the tractus genitalis tation, and puerperium) the uterus becomes

(ovulation, secretion, absorption, pubertas, supplied with an extra quantity of blood for functional reasons-development and nour

menstruation, gestation, and puerperium) ishment.

are quiescent, in abeyance (see Figs. 1, 2, The method by which the uterus controls

PUBERTAS. its own blood-supply is through muscular and elastic reflex action: i.e., its muscular At puberty, or the first external funcand elastic bundles act like living ligatures, tional manifestation of the tractus genitalis, ready at a moment's notice to control the the utero-ovarian artery—the uterine blooduterine vessels.

supply—springs into activity. The tractus

(1)

and 3).

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