upon the provisions of the contract between defendant and the government, which it was insisted must be read into the contract between plaintiff and defendant. Among those provisions was this:


27
'It is further covenanted and agreed that the United States shall have the right of suspending the whole or any part of the work herein contracted to be done, whenever, in the opinion of the supervising architect, it may be necessary for the purposes or advantage of the work, and upon such occasion or occasions the contractor shall, without expense to the United States, properly cover over, secure, and protect such of the work as may be liable to sustain injury from the weather, or otherwise; and for all such suspensions the contractor shall be allowed one day additionalto the time herein stated for each and every day of such delay so caused in the completion of the work, the same to be ascertained by the supervising architect; and a similar allowance of extra time will be made for such other delays as the supervising architect may find to have been caused by the United States, provided that a written claim therefor is presented by the contractor within ten days of the occurrence of such delays; provided, further, that no claim shall be made or allowed to the contractor for any damages which may arise out of any delay caused by the United States.'


28
And among the 'General Conditions' prefacing the specifications was this:


29
'The Department, acting for the United States, reserves the right to suspend any portion