(9) Liquidated damages for delay in completion. (10) The City may change the plans. (11) The City may increase the amount of the work. (12) Inspection and its conduct. (13) The Contractor to be acquainted with laws relating to the work. (14) Contractor responsible for damages to persons or property. (15) City to be protected against patent claims. (16) Abandonment of contract and its remedy. (17) Estimates of work done and moneys due. (18) Payments for extra work. (19) Character of workmen to be employed. (20) City may reserve a sum for repairs during stipulated term after completion. (21) City may use money due Contractor to pay claims for labor or materials used on the work and not paid for by the Contractor. (22) The Contractor shall have no claim for damages on account of delay or unforeseen difficulties. (23) The Contractor may not assign nor sublet the contract without the City’s consent. (24) Cleaning up after completion. (25) The Contractor’s relations to other contractors. (26) The portions composing the contract. The following examples cover the subjects named in the preceding titles: 1. Definitions. The word Engineer whenever not qualified shall mean the Chief Engineer of the Commission, acting either directly or through his properly authorized agents, such agents acting severally within the scope of the particular duties entrusted to them. This article may include words that may be in dispute or ambiguous such as: Board of Trustees, Elevation, City, Contractor, Rock, Earth, etc., etc. 2. Disputes. To prevent disputes and litigations, the Engineer shall in all cases determine the amount, quality, and acceptability of the work which is to be paid for under the contract; shall decide all questions in relation to said work and the performance thereof, and shall in all cases decide every question which may arise relative to the fulfillment of the contract on the part of the Contractor. His determination, decision and estimate shall be final and conclusive, and in case any question shall arise between the parties touching the contract, such determination, decision, and estimate shall be a condition precedent to the right of the Contractor to receive any moneys under the contract.