File:The principles and practice of obstetrics (1864) (14779931031).jpg

Identifier: 67240830R.nlm.nih.gov
Title: The principles and practice of obstetrics
Year: 1864 (1860s)
Authors: Hodge, Hugh L. (Hugh Lenox), 1796-1873
Subjects: Obstetrics Obstetric Surgical Procedures Pregnancy
Publisher: Philadelphia : Blanchard and Lea
Contributing Library: U.S. National Library of Medicine
Digitizing Sponsor: Open Knowledge Commons, U.S. National Library of Medicine

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Text Appearing Before Image:
ot-withstanding all that has been written upon the sub-ject, is still imperfect. Many difficulties necessarilyexist, as is proved by the want of accuracy, as well asby the discrepancy, in the opinions of the best writers.To diminish, therefore, these difficulties, and to obtain,if possible, more precise information of the form anddimensions of the canal of the pelvis, the author hashad a cast taken, by an experienced artist, of theinterior of the pelvis, from the superior to the inferiororifices. This cast represents, therefore, with the greatestaccuracy, the form of the cavity of the pelvis, and theshape of the entrance and exit of the canal. Bymaking various sections of this cast in a horizontal andvertical direction, a correct representation will be givenof the different planes of the pelvis, of their relativeform, and of their exact dimensions. To prevent, ifpossible, any error, the cast and its sections have beenphotographed, and then carefully lithographed; thus Fig. 1. Plate 1.
Text Appearing After Image:
H 2 T Sinclairs Ink. Phjla INFERIOR PELVIS, 23 presenting to the eye a very perfect view of the wholeinterior of the pelvis, of its shape, of its planes, andthe relative size of their diameters. The study of the pelvis will be greatly facilitated bycareful attention to these drawings, which will, wethink, reward the student for the time and labor be-stowed upon the investigation. The pelvis employed is of an average size, and is thesame used for all the illustrations given in the platesof this work, excepting those exhibiting a lateral sec-tion, where another pelvis has been used. An advan-tage of thus assuming one pelvis as a standard, is topreserve uniformity as regards the dimensions, angles,inclinations, etc., of the pelvis, which necessarily varyin different subjects, and concerning which there is anapparent discrepancy among teachers. The inferior pelvis embraces all that portion of thepelvis below the linea ilio-pectinea. It is formed of thesacrum, the coccyx, the lower portion

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