
The Greatest Power
Miriam Monroe and John Conrad are two young scientific workers who, independently of each other, have discovered a chemical called exonite. Miriam discovered it while searching for a cure for cancer, while Conrad used it as a basis for a powerful explosive.
Release Date: 1917-06-18

Ethel Barrymore
Miriam Monroe

William B. Davidson
John Conrad

Harry Northrup
Albert Bernard (as Harry S. Northrup)

Frank Currier
Randolph Monroe

Frederick Truesdell
Prof. Poole (as Fred C. Truesdell)