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Journal of the
Society of Motion Picture Engineers
VOLUME 53 AUGUST 1949 NUMBER 2
PAGE
Engineering Techniques in Motion Pictures and Television
ALFRED N. GOLDSMITH 109
Motion Picture Laboratory Practice for Television
ARTHUR J. MILLER 112
Sound-on-Film Recording for Television Broadcasting
CLYDE R. KEITH 114
Television-Film Requirements G. DAVID GUDEBROD 117
Will Film Take Over the Television Commercial? :
JOSEPH A. MORAN 120
Discussion — Television Forum 124
Progress Report — Theater Television BARTON KREUZER 128
Television Pickup for Transparencies. . . .ROGER D. THOMPSON 137 Use of 35-Mm Ansco Color Film for 16-Mm Color Release Prints .
REID H. RAY 143
Direct-Positive Variable-Area Recording with the Light Valve
LEWIS B. BROWDER 149
35-Mm and 16-Mm Portable Sound-Recording System
E. W. TEMPLIN 159 Demineralization of Photographic Wash Water by Ion Exchange
HARRY P. GREGOR AND N. N. SHERMAN 183
Meetings of Other Societies 192
Film Vaults: Construction and Use JOHN G. BRADLEY 193
66th Semiannual Convention 207
John H. Kurlander 210
Proposed Standard for 35-Mm Sprocket Holes . .211
Section Meeting 211
New Products 212
ARTHUR C. DOWNES HEIIEN M. STOTE NORWOOD L. SIMMONS
Chairman Editor Chairman
Board of Editors Papers Committee
Subscription to nonmembers, $10.00 per annum; to members, $6.25 per annum, included in their annual membership dues; single copies, $1.25. Order from the Society's General Office. A discount of ten per cent is allowed to accredited agencies on orders for subscriptions and single copies. Published monthly at Easton, Pa., by the Society of Motion Picture Engineers, Inc. Publication Office, 20th & Northampton Sts., Easton, Pa. General and Editorial Office, 342 Madison Ave., New York 17, N. Y. Entered as second-class matter January 15, 1930, at the Post Office at Easton, Pa., under the Act of March 3, 1879.
Copyright, 1949, by the Society of Motion Picture Engineers, Inc. Permission to republish material from the JOURNAL must be obtained in writing from the General Office of the Society. Copyright under International Copyright Convention and Pan-American Convention. The