52If within half an hour from the time appointed for the meeting a quorum is not present, the meeting, .if convened upon the requisition of members, shall be dissolved ; in any other case it shall stand adjourned to the same day in the next week, at the same time and place, and, if at the adjourned meeting a quorum is not present within half an hour from the time appointed for the meeting, the members present shall be a quorum.