PROLOGUE
Before the narrative which follows was placed in my hands, I had never seen Dr. Walter T. Goodwin, its author.
When the manuscript revealing his adventures among the pre-historic ruins of the Nan-Matal in the Carolines (The Moon Pool) had been given me by the International Association of Science for editing and revision to meet the requirements of a popular presentation, Dr. Goodwin had left America. He had explained that he was still...
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