October, when the foundation work and the grading inside the foundation walls had proceeded to a point that would admit of the commencement of the course of granite, and enough granite was upon the ground to allow a start to be made of setting it. In August or September plaintiff was notified of defendant's acceptance of the option to call upon plaintiff to set the granite at 40 cents per square foot, but the granite was slow in arriving, and some of the stones were misfits, so that the work of laying was considerably interrupted. There was difficulty also with the derrick equipment, defendant having, under the contract, furnished two derricks and an engine, but with insufficient power to admit of operating both derricks at the same time.This was remedied, some time in December, by the provision of additional power. The granite setting proceeded from the middle of October to the 12th of February, 1912, plaintiff's evidence being to the effect that it was set as fast as delivered, but that because the granite came in separate shipments, a little at a time, sometimes with needed blocks missing, the work of setting it could not be speeded. On or about February 12, 1912, plaintiff stopped setting granite, with defendant's consent.


17
The evidence tended to show that much of the delay during the spring and summer of 1911 was occasioned by a change made by arrangement between defendant and the government in the provisions of the general contract respecting the mode of constructing the foundations. The pleader