Payments shall be made as follows: Upon completion of the preliminary
sketches, 1 per cent of estimated cost; upon completion of the general
drawings and specifications, an additional 1-1/2 per cent of estimated
cost; upon completion of details an additional 1 per cent of estimated
cost; and upon completion of the work, the charge for supervision or
inspection. At that time, also, any differences between the percentage
upon the estimated and actual cost is to be settled, and any deficiency
is to be paid or excess credited.
Travelling expenses and other necessary disbursements are payable when
incurred.
In case contracts are not entered into for the work within six months
after the drawings are ready for contractors to estimate, payment shall
be made for the work done at the rates herein before specified, computed
upon the estimated cost. Provided, however, that if at any subsequent
time the plans and specifications prepared by us, are used and the
actual cost exceeds the estimated cost, compensation upon such excesses,
shall be made at the rates aforesaid.