On June 24, 1956, this was a digital version of an article in The Times Print File, before it began to be published online in 1996. To keep these articles as they appear initially, the Times will not change, edit, or update them. There are occasional copywriting errors or other problems during the digitization process. Please send a report of such issues to archid_feedback @ nytimes. com. Dr. A. J. Cornish, a Westinghouse physicist, developed a magnet of almost 100 pure manganese --bismuth-- Compound formulated as MnBi. View the full article in The Time Machine a version of this file appears on page E9, New York edition, June 24, 1956, with the title: scientific notes; Practical permanent magnet- Radiation of flower magnet-ATOMIC FLOWER--REACTOR--IODINE--.