I don't know if it has been published
yet, but Salem Press's *Ready Reference Guide to
Censorship* has a nice, er, wll-reserached, ah, well, I wrote it,
so can't be too complimentary, article on Mark Twain
and Censorship.  I would suggest perusing the articles
in the MT Enc. on the sexual pieces written by Twain or
perpoerted to have been written by him.

Cheerio
wes britton