14 WEEKS OF THROBBING THRILLS! WITH THE SERIAL THAT NEVER LETS YOU DOWN! (original ad - all caps)
SURROUNDED BY DEVIL-SHARKS...HEMMED IN BY A BAND OF KILLERS ON AN ISLAND OF FEAR...WHO DARES DEFY THE GODS OF THE JUNGLE TO WIPE OUT THE NEW RADIO MENACE! (original ad - all caps)
See Chapter 1 of This Thrilling New Serial! (original print ad - Lubbock Morning Avalanche - Lyric Theatre - Lubbock, Texas - Jan. 22, 1938)
SEETHING WITH EXCITEMENT ON AN ISLAND OF FEAR! (original print ad - Lubbock Morning Avalanche - Lyric Theatre - Lubbock, Texas - Jan. 22, 1938 - all caps)