The Internet Archive has a preservation copy of this work in our general collections.
segment dilates the vulvar outlet, and develops the elasticity of the perineal structures. Little by little, the occiput and parietal protuberances pass beyond the plane of the vaginal os and the foetal neck is applied to the sub-pubic surface. Now is the time of greatest danger. The women opens her mouth,doi:10.1001/jama.1884.02390550019005 fatcat:pocuiplabrht7npsfmovo24dwe