. An American text-book of obstetrics. For practitioners and students. Vascular area of eleven-day rabbit embryo i E. v. Beneden and Julin): capillaries not shown ; the terminal sinus is seen to be arterial. 106 AMERICAN TEXT-BOOK OF OBSTETRICS. or venous compartment; the upper and posteriorly directed loop is the ventric-ular or aiterial compartment; the upper limb is the truncus arteriosus, fromwhich arise the primitive aortic arches. The heai*t, therefore, at this stage—about the fourteenth day—consists essentially of two imperfectly separated.

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Keywords: ., bookcentury1800, bookdecade1890, booksubjectobstetrics, bookyear1