It shall be the policy of the City, binding upon all its officials, that in those instances where improvements are financed in whole or in part by special assessments and where the bonds issued to accomplish such financing include the cost of engineering incurred or performed by the City, that portion of the proceeds of such bonds representing such engineering expense shall be transferred to the General Fund of the City to defray such expense. (Ord. 1958-101. Passed 7-13- 58.)