Identifier: 2543001R.nlm.nih.gov
Title: An abridgment of Mr. Heath's translation of Baudelocque's midwifery
Year: 1807 (1800s)
Authors: Baudelocque, Jean Louis, 1745?-1810 Dewees, William P. (William Potts), 1768-1841 Heath, John, surgeon, translator Lawson, Alexander, 1773-1846, engraver Bartram, Archibald, 1774?-1808, printer Dobson, Thomas, 1751-1823, publisher Tabbs, Moses, former owner. DNLM
Subjects: Midwifery Obstetrics Infant Care
Publisher: Philadelphia : Printed by Bartram and Reynolds, for Thomas Dobson ...
Contributing Library: U.S. National Library of Medicine
Digitizing Sponsor: Open Knowledge Commons, U.S. National Library of Medicine

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this arch may be known 78 EXPLANATION OF THE SIXTH PLATE. known by means of the finger applied tranfverfely inthe vagina ; or by feeling externally at the fides, andalong the labia pitdendi. The diftance between thetuberosities of the ischia alfo demonftrates this breadthvery well. Explanation of the Sixth Plate. THIS plate reprefents a vertical fe&ion of the pel-vis, reduced to about half its natural dimenfions;with the pelvi-meter of M. Contouli, and my calipers. Fig. I. A, A, A, A, The four teft. lumbar ver~febra. B, B, B, The os facrum. C, C, The coccix. d, d, Surface refulting from the fe&ion of the fym*phyjis of the pubes. E, The left iliac fifa. F, The left fide of the fuperior strait.G, The facro-ifchiatic ligament. H, The tuber ofity of the i/chium. i, i, The entrance of the vagina. K, One of the labia pudendi. L, The anus. M, The mons veneris. N, The left natis. Fig. II. The calipers which I ufe for meafuringthe anteroposterior diameter of the fuperior strait. a, a,
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FXPLANATION OF THE SIXTH PLATE. 79 a, a, The branches of the calipers. B, The hinge which unites the two branches. c, c, Lenticular buttons which terminate the branch-es. d, A graduated fcale, nine inches long, intended todemonftrate the thicknefs of the body comprifed be-tween the branches.* e, The place where the fcale is united by a kindof hinge. f, A little fcrew, with a flat head, intended to fixthe fcale, while we calculate the thicknefs of the bodycomprifed between the branches. Fig. III. The pehi-meter of M. Contouli, deve-loped in the pelvis. A, A, The firft branch, whofe fquare, B, is appli-ed to the projection of the sacrum. C, C, A kind of hooks, intended to keep the firftbranch in its place while we introduce and developthe fecond. This branch has a dove-tailed grove, in which thebody of the fecond branch is lodged and moved. d, d, The fecond branch of the inftrument, whofefquare, e, is placed again ft the sympbyfis of the pubes. F, A fcale, four inches long, graduated on

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