A textbook of obstetrics . I ig. 506.— Rachitic pelvis with double promontory: C. from firsl and fromsecond sac. vert., 6)^ < m. ; tr., \2x, cm. (Mtttter Museum, College of Physicians,Philadelphia). A XV MA LIES IN THE FORCES OF LABOR 449. Fig. 307.—Pressure of the promontory upon the head in a contracted pelvis (Smellie).

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Keywords: ., bookcentury1800, bookdecade1890, bookidtex, booksubjectobstetrics