Out Of Time's Abyss - E-text at Project Gutenberg. - http://www.gutenberg.org/etext/553
People Out Of Time - E-text at Project Gutenberg. - http://www.gutenberg.org/etext/552
Literature Network: The Land that Time Forgot - Chapter indexed HTML of the complete text. Includes a search feature. - http://www.online-literature.com/edgar_rice_burroughs/time_forgot/
Literature Network: The Lost Continent - Chapter indexed HTML of the complete text. Includes a search feature. - http://www.online-literature.com/edgar_rice_burroughs/lost_continent/
Page By Page Books: Out of Time's Abyss - Chapter-indexed and paged HTML text of the novel. - http://pagebypagebooks.com/Edgar_Rice_Burroughs/Out_of_Times_Abyss/
Page By Page Books: The Lost Continent - Chapter-indexed and paged HTML text of the novel. - http://pagebypagebooks.com/Edgar_Rice_Burroughs/The_Lost_Continent/