More to explore:
Jungle Girl fighting a leopard
At the Earth's Core by Edgar Rice Burroughs. The first ERB I read, and standing in for all his other books. Here illustrated by the great Frank Frazetta.
Frank Frazetta - wolves
#Frank_Frazetta. /Reminds me of the girl in the movie Conan the Barbarian, love that movie EL/
The Huntress by Carlos Valenzuela *