approaches to the Gamma Stations.
The Timing Station on Biijiri was poured on 28 February in one
continuous mold, the concrete crew completing the work far ahead of
the estimated time schedule.
The use of cranes and pouring buckets
contributed in no small measure to the rapid work.
On the 25th February the Bureau of Yards and Docks timber struc-
tures were started on Biijiri and completed five days later.
The
lead crew arrived on the 25th also, prepared to install the coffin
in the timing station.
An M.P. guard post was established at Zero Tower on 26 February
to safeguard the various items of equipment and supply located tere,
also to maintain a watch on the generator#® and lighting system that
had been installed to illuminate the tower.
The base forGamma Station "Ahiwas’ poured on 28 February and by
the use of an .05 percent mixture of "sugar" by weight to cement
content, the concrete was transported to Rojoa by DUKW and the base
of Gamma "C" poured in that manner.
The first phase of the lead coffin installation in the Timing
Station was completed on 6 March after being started on the lst.
On 5 March, work was begun on the 400 foot Station Shed, the
1000 foot Station and the Quonset Hut on fejos*' Blast: Yootings "B"
were finished on that date.
The Massachusetts Institute of Technology team arrived on 5
March and commenced wiring the timing station and installing the air
conditioning units.
SECTION VIb
81,