Dear Keiva:

Just looked up water mills on Google and there's ample grist for the mill there. Here's a site with pictures and information about the history of the water mill. Undershot and overshot mills are discussed, but best are the drawings that show how the parts work.

*Note for clarification: undershot and overshot have nothing to do with gin mills.

WW

PS: Forgot to post the link. Here it is:

http://inventors.about.com/gi/dynamic/offsite.htm?site=http://www.geocities.com/Athens/Forum/3807/features/watermills.html