Monitor guards were established on Yoke-plus-4, and maintained
continuously until the island was closed just prior to Z#BRA test.
Their presence considerably facilitated the work of the engineers in
clearing evidence of blast effects from the island.
DELETED .
AEA Restricted Data
The island of YOKE test was closed and declared a restricted
area on YOKE-plus-ll.
Reconnaissance on the island of ZEBRA test,
ahd the survey of lagoon currents off this island had already begun.
ZEBRA Test
DELETED
AEA Restricted Data
RadSafe Party No. 4 ran into considerable difficulty on their
mission, because snagging of the land cable made it impossible to wind
the samples in to a safe area where they could be conveniently handled.
The importance of obtaining these samples made it necessary to pick
them up by jeep, which exposed the party to considerably greater
radioactivity than had been met on previous missions.
126
Section, IX
Rotation of the