What I find really remarkable here is how little difference there is between the Fox Thor and the later Marvel Thor. Sure, it's a public domain mythological character, and Jack Kirby could sure draw rings around Pierce Rice (even in 1940), but consider...
Fox's Thor has a mortal identity of a blond-haired young man who transforms into a caped, helmeted, clean-shaven Thor who has *long* blond hair. There are hints of a 'love-triangle' between the hero's girlfriend and his alter-ego.
I'll admit Stan Lee brought a little more panache to the dialogue, but the basic blueprint here in the Fox version is very close to the Silver Age Marvel hero as initially conceived (at least before Kirby took the character back much closer to his mythological roots in the mid-to-later '60s).
Link to the book:
Weird Comics 01 (fiche)