Spencer's Philosophy of Science :
Morgan, C. Lloyd 1852-1936
Spencer's Philosophy of Science : The Herbert Spencer Lecture Delivered at the Museum 7 November, 1913 [electronic resource] / C. Lloyd Morgan - Project Gutenberg, 2011 - Project Gutenberg 37513 .
Public domain in the USA.
Electronic text
Spencer's Philosophy of Science : The Herbert Spencer Lecture Delivered at the Museum 7 November, 1913 [electronic resource] / C. Lloyd Morgan - Project Gutenberg, 2011 - Project Gutenberg 37513 .
Public domain in the USA.
Electronic text