Most of the work was carried out under contract to the Office of Naval Research under Contracts NO. N5ori-07631 and N5ori-07656 with Harvard University between September 1, 1949 and June 30, 1955.

Most of the work was carried out under contract to the Office of Naval Research under Contracts NO. N5ori-07631 and N5ori-07656 with Harvard University between September 1, 1949 and June 30, 1955.