Claim: New Writings in SF 17 is a seven novelettes and short stories anthology of science fiction short stories edited by John Carnell that was published in 1970 in hardcover by  Dennis Dobson.
Evidence: The book collects seven novelettes and short stories by various science fiction authors, with a foreword by Carnell. John Carnell 1970 Print (Hardcover) Dennis Dobson 
New Writings in SF 17 is an anthology of science fiction short stories edited by John Carnell, the seventeenth volume in a series of thirty, of which he edited the first twenty-one. It was first published in hardcover by Dennis Dobson in 1970, followed by a paperback edition issued under the slightly variant title New Writings in SF -- 17 by Corgi the same year. The book collects seven novelettes and short stories by various science fiction authors, with a foreword by Carnell.