A defence of the cesarean operation, [electronic resource] : with observations on Embryulcia, and the section of the Symphysis Pubis, addressed to Mr. W. Simmons, of Manchester, author of reflections on the propriety of performing the Caesarean operation. Containing some new cases, and illustrated by seven Engravings. By John Hull, M. D. Member of the Corporation of Surgeons, and of the Physical Society of London; of the Natural History Society of Edinburgh; and Secretary of the Literary and Philosophical Society of Manchester.