sold to the Swiss Government, was displayed in New York City October 19 to November 3, 1955. It was installed at the Carnegie Endowment International Center, United Nations Plaza, under the auspices of the Atomic Industrial Forum, the Carnegie Endowment for International Peace, and the Fund for Peaceful Atomic Development. An exhibit believed to be of such a highly technical nature that it would not particularly interest nonprofessional people was visited by 50,000 persons including large numbers of school children.

The State of Oklahoma's Department of Commerce and Industry contracted with the Commission to show the exhibit in connection with the Southwest American Exposition in Oklahoma City, April 15–29, 1956, which was attended by several hundred thousand visitors. At the conclusion of the Oklahoma City showing, the exhibit was shipped to Chicago, Ill., where under the sponsorship of the Museum of Science and Industry, it is scheduled to be displayed for a period of at least 2 years.

Smaller Exhibits Prepared

Recognizing the need and the desire of the public for fuller information on progress and development of the peaceful uses of atomic energy, the Commission in January 1956 decided to provide several new exhibits which can tour the country. Two types of these exhibits are being prepared, a larger one requiring about 5,000 square feet of floor space for display, and a smaller mobile exhibit that is to be set up and toured in truck trailers. The exhibits are to be available to qualified exhibitors free of rental and transportation charges.

The Commission defines a qualified exhibitor as "one who, in the judgment of the Commission, would show the exhibit for the purpose of informing the public and not for any commercial exploitation, and who would make no charge to the public for the showing."

The Oak Ridge Institute of Nuclear Studies, through its American Museum of Atomic Energy, undertook to develop and prepare the exhibits, three of the larger type, and five of the truck-trailer exhibits. The three larger exhibits each consisted of 82 panels with suitable model displays, pieces of equipment and other visual and auditory devices. The first of the larger exhibits was scheduled to be put on display for an exhibition of several months at the Smithsonian Institution in Washington, D. C. The other two exhibits of this type were by June 30 booked several months in advance. The general fields covered by the exhibit include raw materials; reactors; nuclear power in the United States; production of radioisotopes; radioisotopes in industry, medicine and agriculture; the United States world-wide Atoms for Peace Program; encouraging United States private enterprise in

atomic energy; health, safety, and industrial uses of atomic energy; research; and Commission programs for training technical manpower. The five exhibits set up in truck trailers are designed for display in rural and small urban areas. These mobile units, 35 feet in length, display exhibit material covering all areas of peacetime atomic energy development. Arrangements are being worked out with the National University Extension Association to sponsor the exhibits nationally and arrange for their scheduling and public showings. It is anticipated that the National Organization of the Junior Chamber of Commerce will cooperate locally in putting on the exhibits. The first of these units was expected to be ready for touring by mid-summer of 1956.

TECHNICAL INFORMATION

Distribution

Including the reports declassified by the accelerated review program (see Declassification and Classification), approximately 26,000 nonclassified technical reports were available to science and industry as of the end of this reporting period. This included some 500 papers which United States scientists and engineers prepared for last August's International Conference on the Peaceful Uses of Atomic Energy in Switzerland. Professional and technical journals have published about 6,000 of the total; the remainder are for sale by the Office of Technical Services, U. S. Department of Commerce. Besides these reports, some 200 summaries and compilations are being sold, chiefly through the Government Printing Office.

The nonclassified reports are available to all purchasers. Each applicant for a permit for access to classified material is sent immediately a price list of the nonclassified reports, bibliographies, and lists of other technical material. When a permit is granted, this first shipment is supplemented by appropriate publications and lists of classified material. Classified documents are sold to access permit holders by the Technical Information Service Extension at Oak Ridge, Tenn.

Sales of nonclassified reports for the year ended April 30, 1956, by Commerce's Office of Technical Services were estimated at approximately 112,000 copies. The Office of Technical Services also is prepared to supply photostat or microfilm reproductions of all the Commission's nonclassified reports not available in full-size printed copies. Other sources for microcopy reproductions are Hitchock Publishing Co., 1115 Seventeenth St., N. W., Washington; The Microcard Foundation, Box 2145, Madison 5, Wis.; and Readex Microprint Corp., 100 Fifth Ave., New York 11, N. Y.

Forty-nine depository libraries have been established throughout the country (see map) to provide reference and photoduplication service covering their collections of nonclassified atomic energy reports, special publications and bibliographies. The Commission has authorized establishment of 15 additional depositories. When completed, this library system is intended to make available at least one collection of nonclassified documents in each metropolitan area of 500,000 or more persons. The Commission also plans to establish several classified depositories for service to access permit holders at various locations throughout the United States.

Engineering Drawings

Some 4,000 nonclassified and classified engineering drawings of industrial interest have been assembled to distribute through the Technical Information Service Extension at Oak Ridge, Tenn. The drawings include sets of selected nonclassified engineering drawings for the following reactors: Oak Ridge Research Reactor (X-10), Materials Testing Reactor, Los Alamos Supo Water Boiler Reactor, Tower Shielding Reactor Facility, Bulk Shielding Reactor Facility, Argonne CP-5, ORNL Low Intensity Training Reactor (LITR), Geneva Conference Pool Reactor, and Los Alamos Test Power Reactor Experiment No. 1.

Industrial Exhibits

Small technical exhibits on single aspects of industrial possibilities of atomic energy were shown during the last 6 months at such meetings as the New England New Products, New Methods Exhibits, Boston, Mass., March 1956; the Swiss Atom Show sponsored by the Swiss Society of Engineers and Architects and the Swiss Electrical Association and Power Engineers Exhibit, both in Neuchatel, Switzerland, in April 1956; and the Conference on Industrial and Social Implications of Atomic Energy sponsored by the American Labor Education Service, Cleveland, Ohio, January 1956. An exhibit also was presented at the Nuclear Engineering and Science Congress and International Atomic Exposition, Cleveland, Ohio, in December 1955.

Publication

The Commission has initiated programs to compile and publish handbooks and summaries in selected technical fields (see Appendix 6). Those printed or released during 1956, nonclassified, and available

from the Superintendent of Documents, Government Printing Office, Washington 25, D. C. are: "Radioisotopes in Medicine;" "Conference on Radioactive Isotopes in Agriculture" (in press); and "Nuclear Level Schemes."

Major nonclassified publications printed or released during 1956 and available from the Office of Technical Services, Department of Commerce, Washington 25, D. C. are: "USAEC Industrial Participation Group Program-History and Accomplishments," May 1951April 1955; "Materials Testing Reactor Project Handbook;" "“Reactor Shielding Design Manual;" "Raw Materials Conference on Solvent Extraction;" "Feasibility Study of Pressure Vessels for Nuclear Power Generating Reactors;" "The Chemistry and Metallurgy of Miscellaneous Materials;" "Determination of the Isotopic Composition of Uranium;" "Electrical Equipment for Tanks and Magnets;" “Magnets and Magnetic Measuring Techniques;” “Electrical Circuits for Calutrons;" "Electromagnetic Separation of Isotopes in Commercial Quantities;" "Sources and Collectors for Use in Calutrons;" "Problems of Physics in the Ion Source."

One additional volume of the National Nuclear Energy Series entitled, "Medical Effects of the Atomic Bomb in Japan," became available from the McGraw-Hill Book Co., New York, N. Y.

Other manuscripts, some of which may be classified, are now in preparation under contracts. They are: "Atomic Energy Fact Book," "Handbook on Waste Disposal;" "Nuclear Radiations in Industry and Science;" "Production of Uranium Metal;" "Production of Thorium Metal;" "Recovery and Processing of Uranium Ores;" "Neutron and Gamma Irradiation Facilities;" "Handbook of Reactor Control and Safety;" "Trilinear Chart of Nuclides;" "Radiation Shielding;" "Corrosion and Wear Handbook for Water-Cooled Reactors;" "Hot Laboratory Catalog;" and the four-volume revised "Reactor Handbook."

"The Industrial Atom" series of nonclassified monographs presenting articles of current industrial interest now numbers 12 issues, for sale at the Office of Technical Services.

The Commission has maintained a continuing review of technical reports as they are created to determine whether they contain industrial information which should be published. Recently, a special program was undertaken to survey information accumulated in the hands of its contractors, much of it as informal notes, with the intention of collecting and publishing such material as might be useful to industry, either nonclassified or with appropriate classification.

Other publication programs designed to assist industry include a classified monthly abstract journal for those with access permits, bibliographies, proceedings of seminars, and a classified bimonthly jour