From ISFDB

Jungle Stories

From Tuck's Encyclopedia of Science Fiction and Fantasy:

      The first series are now collector's items. The second series was
    based around the character "Ki-Gor," a Tarzan-like inhabitant of
    Africa, with his mate Helen Vaughn and friend M'Gesso, chief of
    the pygmies. All stories in the second series, except the first, were
    by John Peter Drummond. All titles are listed in The Hero-Pulp
    Index, McKinstry & Weinberg.

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