"The Merman" is a science fiction story by American writer L. Sprague de Camp, based on the concept of human biological engineering. It was first published in the magazine Astounding Science-Fiction for December, 1938. It first appeared in book form in the collection The Wheels of If and Other Science Fiction ; it later appeared in the anthology Science Fiction of the Thirties and the collection The Best of L. Sprague de Camp. The story has been translated into German

The Best of L. Sprague de Camp is a collection of writings by American science fiction and fantasy author L. Sprague de Camp, first published in hardback by Nelson Doubleday in February 1978 and in paperback by Ballantine Books in May of the same year as a volume in its Classic Library of Science Fiction. The book was reprinted by Ballantine in May 1986. It was reissued in trade paperback and ebook editions by Phoenix Pick in December 2014. It has also been translated into German.