O’NEAL, R. D., Photographic Methods for Handling Input and Output Data, _Proceedings of a Symposium on Large-Scale Digital Calculating Machinery_, Cambridge, Mass.: Harvard University Press, 1948, pp. 260-266. TYLER, ARTHUR W., Optical and Photographic Storage Techniques, _Proceedings of a Symposium on Large-Scale Digital Calculating Machinery_, Cambridge, Mass.: Harvard University Press, 1948, pp. 146-150. ZWORYKIN, V. K., L. E. FLORY, and W. S. PIKE, Letter-Reading Machine, _Electronics_, vol. 22, no. 6, June 1949, pp. 80-86. ANONYMOUS, Letter-Printing Cathode-Ray Tube, _Electronics_, vol. 22, no. 6, June 1949, pp. 160-162. Storage Devices BRILLOUIN, LEON N., Electromagnetic Delay Lines, _Proceedings of a Symposium on Large-Scale Digital Calculating Machinery_, Cambridge, Mass.: Harvard University Press, 1948, pp. 110-124. FORRESTER, JAY W., High-Speed Electrostatic Storage, _Proceedings of a Symposium on Large-Scale Digital Calculating Machinery_, Cambridge, Mass.: Harvard University Press, 1948, pp. 125-129. HAEFF, ANDREW V., The Memory Tube and its Application to Electronic Computation, _Mathematical Tables and Other Aids to Computation_, vol. 3, no. 24, Oct. 1948, pp. 281-286. KORNEI, OTTO, Survey of Magnetic Recording, _Proceedings of a Symposium on Large-Scale Digital Calculating Machinery_, Cambridge, Mass.: Harvard University Press, 1948, pp. 223-237. MOORE, BENJAMIN L., Magnetic and Phosphor Coated Discs, _Proceedings of a Symposium on Large-Scale Digital Calculating Machinery_, Cambridge, Mass.: Harvard University Press, 1948, pp. 130-132. RAJCHMAN, JAN A., The Selectron—A Tube for Selective Electrostatic Storage, _Mathematical Tables and Other Aids to Computation_, vol. 2, no. 20, Oct. 1947, pp. 359-361 and frontispiece. SHARPLESS, T. KITE, Mercury Delay Lines as a Memory Unit, _Proceedings of a Symposium on Large-Scale Digital Calculating Machinery_, Cambridge, Mass.: Harvard University Press, 1948, pp. 103-109. SHEPPARD, C. BRADFORD, Transfer Between External and Internal Memory, _Proceedings of a Symposium on Large-Scale Digital Calculating Machinery_, Cambridge, Mass.: Harvard University Press, 1948, pp. 267-273. Programming or Coding EVERETT, ROBERT R., _Digital Computing Machine Logic_ (memorandum M-63), Cambridge, Mass.: Massachusetts Institute of Technology, Servo-mechanisms Laboratory, Mar. 19, 1947, 48 pp.