Edwin Lester Arnold 
Gulliver of Mars [EPUB ebook] 

Lieutenant Gulliver Jones, U.S.N., arrived on Mars in a most unexpected fashion and promptly found himself head-over-heels in adventure. For Mars was a planet of ruined cities, ancient peoples, copper-skinned swordsmen, and weird and awesome monsters. There was a princess to be rescued, a River of Death to be navigated, and a strange prophecy to be fulfilled.