Thoughts on a Pebble, by Gideon Algernon Mantell 62871 [Subtitle: or, A First Lesson in Geology] [Link: http://www.gutenberg.org/6/2/8/7/62871 ] [Files: 62871-8.txt; 62871-h.htm] Thanks to Tom Cosmas from materials made freely available on The Internet Archive. All derived products are placed in the Public Domain. David