On the first of Siwan the waters began to abate, a quarter of an ell a day, and at the end of sixty days, on the tenth day of Ab, the summits of the mountains showed themselves. But many days before, on the tenth of Tammuz, Noah had sent forth the raven, and a week later the dove, on the first of her three sallies, repeated at intervals of a week. It took from the first of Ab until the first of Tishri for the waters to subside wholly from the face of the earth. Even then the soil was so miry that the dwellers in the ark had to remain within until the twenty-seventh day of Heshwan, completing a full sun year, consisting of twelve moons and eleven days.