Identifier: compendioussyst00dewe (find matches)
Title: A compendious system of midwifery
Year: 1852 (1850s)
Authors: Dewees, William Potts, 1768-1841. (from old catalog)
Subjects: Obstetrics
Publisher: Philadelphia
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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Text Appearing Before Image:
ight acetabulum,b, b, Symphysis pubis. c, Foramen ovale. d, Spine of the ilium. e, The uterus. f, Anterior fontanelle behind the symphysis pubes, as indicated by the dots. g, Left sacro-iliac symphysis.h, Arch of the pubes. i, Tuber of left ischium. For the mechanism of this labour, see page 199.For the mode of turning, see page 235. For the application of the forceps, see page 261, par. 828, andfollowing. ( 554 ) EXPLANATION OF PLATE XL Fig. I. This plate represents the middle-sized pessary.From a, a, Two inches and four-tenths. b, A central hole to permit any discharges to pass, three-tenths of an inch in width.c, c, An excavation for the neck of the uterus to lie in,when applied. Fig. II. Is a central section of the same pessary. a, a, Represents the internal cavity of the pessary. b, b, Represents the depth of the excavation of c, c, of Fig. I. 5J tenths of an inch deep,c, A section of the central hole, b, of Fig. 1. Fig 2. //,..\7 Suli.m through (he Centre. Ii •>■.!. /%///
Text Appearing After Image:
( 555 ) EXPLANATION OF PLATE XII. EXPLANATION OF THE FORCEPS OF PROFESSOR SIEBOLD. I have been favoured, by the politeness of Dr. Eberie, with asight of Professor Siebolds forceps. In their general form andsize, they differ but little from the forceps of Baudelocque ; they arerather longer in the clams, and a little more curved, as will be seenby examining the plates. What I value in them is, their very ingenious mode of locking:I am persuaded this has a decided advantage in some positions ofthe head, and will contribute to the success of application. Fig. I. a, The top of the screw, which serves to unite the blades. b, The head of the shoulders of the screw, which is received avery small way into the countersink f, fig. 2. c, The conical body of the screw, which is received into the ex-cavation g, fig. 2. d, The cut part of the screw, which passes into the female screwcut in the body of the blade of the forceps. e, The head, or but, against which the lower extremity of thescrew is re

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