books.google.com.auhttp://books.google.com.au/books/about/The_elements_of_social_science_or_Physic.html?id=jsEBAAAAQAAJ&q=urethra&utm_source=gb-gplus-shareThe elements of social science; or, Physical, sexual, and natural religion, by a graduate of medicine [G. Drysdale].![The elements of social science; or, Physical, sexual, and natural religion, by a graduate of medicine [G. Drysdale].](http://books.google.com.au/books?id=jsEBAAAAQAAJ&printsec=frontcover&img=1&zoom=1&edge=curl&imgtk=AFLRE72W5-tZmU8nfqTABTZ3ZVfPVDdW6861auFn9zHKM0Re0oyh9-7vxRPTTQtknpGdzl70avnY7LHOoCkPTy2gD754-zAbV4RLMM7xejqPSddYmpsMIJrPmYOMaXGI2NWfFvn7SHNb "The elements of social science; or, Physical, sexual, and natural religion, by a graduate of medicine [G. Drysdale].")
