The Monster Men - Chapter-indexed HTML text. Project Gutenberg edition. - http://www.cs.cmu.edu/People/rgs/monst-table.html
Literature Network: The Monster Men - Chapter indexed HTML of the complete text. Includes a search feature. - http://www.online-literature.com/edgar_rice_burroughs/monster_men/
OFCN Bookshelf: The Monster Men - Chapter-indexed HTML text of the work. - http://ofcn.org/cyber.serv/resource/bookshelf/monst10/