Foy and Clark's "Spring of Youth" idea serves as a background for the first part at the Dauphine currently. In the original playlet, the patient by drinking too much water becomes an ape. At the Dauphine he becomes a donkey. The donkey employed did a bit of ad lib comedy and his refractory attitude brought guffaws from the large Sunday afternoon audience.
Variety, 41:3 (12/17/1915)