166 The Trials of Suction Gas Plants at Derby , 1906. 
an arrangement the amount of steam evaporated will follow 
closely the number of explosions, that is, will be proportional 
to the load ; also there will be very little lag in the adjustment 
of the amount of steam. The* set was, however, withdrawn 
from competition after running for a few hours, so this point 
could not be tested at the Trials. 
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