Complex sentence: In late 1942 Popular Publications acquired the title from Munsey, and "Famous Fantastic Mysteries" stopped reprinting short stories from the earlier magazines; it continued to reprint longer works, however, including titles by G.K. Chesterton, H.G. Wells, and H. Rider Haggard.
Split into simpler sentences: In late 1942 Popular Publications acquired the title from Munsey, and "Famous Fantastic Mysteries" stopped reprinting short stories from the earlier magazines. It continued to reprint longer works, including titles by G.K. Chesterton, H.G. Wells, and H. Rider Haggard.