Biochemists give fruit-fly serum to a dying woman, with side effects.

Members of a circus troupe “adopt” Lili Daurier when she finds herself stranded in a strange town. The magician who first comes to her rescue already has romantic entanglements and…

With the cyclotram, an atomic-powered rock-boring vehicle, Dr. Jerimiah Morley leads an expedition into a subterranean world.

An ambitious coal miner is talked into becoming a boxer by his gambler brother.

In this reworking of “No, No, Nanette,” wealthy heiress Nanette Carter bets her uncle $25,000 that she can say “no” to everything for 48 hours. If she wins, she can…

A European princess arrives in New York City to secure a much-needed loan for her country. She contracts the mumps, and an actress who looks exactly like her is hired…