146. Where there are several orders of the day, and one of them is fixed for a particular hour, if the orders are taken up before that hour, they are to be proceeded with as they stand, until that hour, and then the subject assigned for that hour is the next in order; but, if the orders are taken up at that time or afterwards, that particular subject must be considered as the first in order.
147. If the motion for the orders of the day is decided in the affirmative, the original question is removed from before the assembly, in the same manner as if it had been interrupted by an adjournment, and does not stand before the assembly, as a matter of course, at its next meeting, but must be renewed in the usual way.
148. If the motion is decided in the negative, the vote of the assembly is a discharge of the orders, so far as they interfere with the consideration of the subject then before it, and entitles that subject to be first disposed of.
149. Orders of the day, unless proceeded in and disposed of on the day assigned, fall, of course, and must be renewed for some other day. It may be provided, however, by a special rule, as in the legislative assemblies of Massachusetts, that the orders for a particular day shall hold for every succeeding day, until disposed of.
150. Incidental questions are such as arise out of other questions, and are consequently to be decided before the questions which give rise to them. Of this nature are, _first_, questions of order; _second_, motions for the reading of papers, etc.; _third_, leave to withdraw a motion; _fourth_, suspension of a rule: and, _fifth_, amendment of an amendment.
151. It is the duty of the presiding officer of a deliberative assembly, to enforce the rules and orders of the body over which he presides, in all its proceedings; and this without question, debate, or delay, in all cases, in which the breach of order, or the departure from rule, is manifest. It is also the right of every member, taking notice of the breach of a rule, to insist upon the enforcement of it in the same manner.
152. But, though no question can be made, as to the enforcement of the rules, when there is a breach or manifest departure from them, so long as any member insists upon their enforcement; yet questions may and do frequently arise, as to the fact of there being a breach of order, or a violation of the rules in a particular proceeding; and these questions must be decided before a case can arise for the enforcement of the rules. Questions of this kind are denominated questions of order.