Even those among the Amblyopsid which live in the open have the tropisms of the cave dweller.
Theirs was the primitive socialism that the cave dweller may have known in his tribe.
Rockwell has been a cave dweller hunting the primeval forest with a stone hatchet and a bow of alder strung with a root.
In the cave dweller's time, combatants used a stone hatchet which was the best weapon that science could produce.
The "Cave Dweller" letter, could it be shown to be in Flechter's penmanship, seemed to fix the crime on the violin dealer.