 
U. S. Energy Research and Development Administration Library of Congress Catalog Card Number: 79-182556 Photograph, spiral galaxy The U. S. Energy Research and Development Administration publishes a series of booklets for the general public. Please write to the following address for a title list or for information on a specific subject: USERDA—Technical Information Center P. O. Box 62 Oak Ridge, Tennessee 37830 Photograph: shelf with china A 19th century photograph restored by neutron activation. This picture, which is in the collection of the Smithsonian Institution, was exposed to neutrons in a nuclear reactor and then placed in contact with modern photographic film. The original, which had been taken by William Henry Fox Talbot who began his career in 1834, is badly faded. |
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