Progress is reported in finaiizing basic design data for the Materials Testing Reactor. The major emphasis at ANL was on issurance of design reports on practically all phases of the MTR project outside the reactor face and low the first fioor level. Operation of the mock-up reacr at ORNL at 10 watts resulted in no major design changes. Topics discussed include the reactor building, wing, and reactor service building; canal and canal facilities; water systems; air exhaust systems; electrical power systems; effluent control; and shielding requirements. 11 drawings. (C.H.).

""The U.S. Atomic Energy Commission is conducting a large-scale review of its research and development reports to make as much information as possible available through the Civilian Application Program. Report Announcement Bulletin ; Unclassified Reports For Civilian Applications is being published to announce immediately, the release of newly declassified reports. ...All reports announced in the Bulletin are available from: Office of Technical Services, Department of Commerce, Washington 25, D.C., at the price listed with each title."--P.iii.