...as the beasts sprang in, his earthly muscles sent him leaping high in the air...

From Author Wars - https://authorwars.com/books/as-the-beasts-sprang-in-his-earthly-muscles-sent-him-leaping-high-in-the-air-2521389.html

Overview:

Title: ...as the beasts sprang in, his earthly muscles sent him leaping high in the air...
Author: Reed Crandall
Year: 1964
Type: Interior Art

2019 . John Carter of Mars (2019, Reed Crandall, Edgar Rice Burroughs, Inc., $150.00, 336 pages, Hardcover, Collection)
2019 . John Carter of Mars (2019, Reed Crandall, Edgar Rice Burroughs, Inc., $100.00, 336 pages, Hardcover, Collection)
2019 . John Carter of Mars (2019, Reed Crandall, Edgar Rice Burroughs, Inc., $100.00, 336 pages, Hardcover, Collection)
2019 . John Carter of Mars (2019, Reed Crandall, Edgar Rice Burroughs, Inc., $150.00, 336 pages, Hardcover, Collection)