(b)shall, from the 1st day of May to the 30th day of June, and from the 1st day of October to the 15th day of November, have her royal and top-gallant yards on deck, and mast-ropes rove in readiness to send the top-gallant mast down at short notice. All such vessels entering the Port of Calcutta between the said dates may be placed in moorings with their top-gallant masts and yards aloft, but their top-gallant yards shall be sent down within 24 hours after they are moored.
