ON 



PARTHENOGENESIS, 



OR 



THE SUCCESSIVE PRODUCTION OF 



PROCREATING INDIVIDUALS 



FROM 



A SINGLE OVUM. 



A DISCOURSE 



INTRODUCTORY TO THE H-UNTERIAN LECTURES ON 



GENERATION AND DEVELOPMENT, 



FOR THE YEAR 1849, 



DELIVE-RED AT THE 



ROYAL COLLEGE OF SURGEONS OF ENGLAND. 



BY 



RICHARD OWEN, F.R.S. &c., 



HUNTERIAN PROFESSOR AND CONSERVATOR OF THE MUSEUM. 



LONDON: 



JOHN VAN VOORST, PATERNOSTER ROW. 



MDCCCXLIX. 



