The links in my earlier post may have been corrupted if opened in HTML format.

Here are the download links again in a shortened URL format,

PDF of PowerPoint version of shoreline analysis showing beach and flat
rock did not exist before the middle twentieth century:

http://goo.gl/dclU1U

Full version of Fairest Picture - Mark Twain at Lake Tahoe in PDF:

http://goo.gl/fxsdvl

David C. Antonucci
Autor of Fairest Picture