uawdiys лот Ареэл sojrd ur a31JOÂ 49 PUNOIS этррии 145 UL SUIMOUS реэззреоз JNJSIAT “PT ‘SLI 
SYDNEY H. BALL: 
grade (Fig. 14). Such 
stock piling is not only 
Гог convenience in ship- 
ping, but also to permit 
the colonial controller 
to more easily deter- 
mine the exact amount 
of royalty due. Some 
twenty years ago when 
the open cut was smal- 
ler, water was pumped 
into the pit in the fall, 
(usually in November), 
allowed to freeze, and 
then pumped out in the 
spring (usually April) 
and the ice removed. 
The annual filling of the 
pit with solid icethrough 
the freezing of seepage 
water was thus obvi- 
ated, but at present it 
is found cheaper to run 
pumps throughout the 
year. Under the old 
system as soon as the 
ice was. sufficiently 
thick tracks were laid 
on it and mining in the 
upper part of the pit 
was recommenced. 
The present mining 
season of some seven 
months is governed by 
the length of time water 
can be used in sorting. 
About half of the sum- 
mer staff is employed in 
winter, stripping the 
overhanging granite 
walls. The working day 
is twelve hours. 
