books.google.com.auhttp://books.google.com.au/books/about/The_elements_of_social_science_or_Physic.html?id=jsEBAAAAQAAJ&q=mental&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=AFLRE71TqxmlRI_luSJ4N5Ve-gmyr2vicm-KgtTQNnC1xIjKXNHhzdBhqS0HUC2d7-qrORU5b24s6R4_CGWz_iEjU4dhAPR5XorgyHXKgy50_4x2WaWNEAljsqhkhsdAvuh6xPDrClD_ "The elements of social science; or, Physical, sexual, and natural religion, by a graduate of medicine [G. Drysdale].")
