The provisions of this section shall apply at all meetings of the Board. All amendments shall be considered in the order in which they are moved. When a proposed amendment is under consideration, a motion to amend the same may be made. No further amendment to the second amendments shall be in order, but when an amendment to an amendment is under consideration, a substitute for the whole matter may be received. No proposition on a subject different from the one under consideration shall be received under color of a substitute.
(Prior Code, § 30.23)