Available in HTML, plain text (us-ascii), & Plucker formats from Ebook #22866. The HTML version includes marginal page numbers, running 46-50, apparently based on those in the source publication.
"This etext was produced from "The Counterfeit Man: More Science Fiction Stories by Alan E. Nourse" published in 1963."
The Project Gutenberg wrapper identifies the author as Alan Edward Nourse; the transcriber's note giving the source (quoted above) as Alan E. Nourse.
"Produced by Greg Weeks, LN Yaddanapudi and the Online Distributed Proofreading Team at http://www.pgdp.net".