Possible Clues:

• Harsh routine in workplace set up
• Inhuman daily grind in setting up laboratory
• Vicious man who conspired with Capone, not American
• Blurt out about a savage
• Inhumane routine is observed in revolutionary scientist's workplace
• Not sweet, animal, heartless. Just so
• Savage, vicious
• Dry area, land initially savage
• Exhausting
• Awful dead end in the lab up there