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UNITED STATES. CONGRESS. SENATE.
COMMITTEE ON INTERSTATE AND FOREIGN COMMERCE
Hearings 1957 Volume 2
Surface transportation safety meas-
ures...S.1386...March 20 and 21,
1957.
Experimental research program in
cloud modification...S.86.
26 and May 13, 1957.
March
Civil aviation medicine...S.1045.
April 1...3, 1957.
Permanent certification of domestic
all-cargo air carriers...S.1474.
April 3 and 4, 1957.
Supplemental air service... April 4
and 5, 1957.