ח והא אמר מר אין אשה מתעברת וחוזרת ומתעברת אמר אביי טיפה אחת היתה ונתחלקה לשתים אחד נגמרה צורתו בתחלת ז' ואחד בסוף ט'
8 and twenty-three days in that of the embryo.<span class="x" onmousemove="('comment',' The second of the incidents supra. This is quite possible where both embryos were born in the seventh month, since all agree that a child may be viable even if the full number of seven months was not completed. ');"><sup>19</sup></span> R. Abin b. R. Adda citing R. Menahem of Kefar She'arim or, as some say, Beth She'arim, stated: It once happened that a child was born three months later than its predecessor and lo, both sit before us in the schoolhouse. And who are they? — Judah and Hezekiah the sons of R. Hiyya. But did not a Master say that a woman in conception cannot conceive again?<span class="x" onmousemove="('comment',' Lit., 'a woman does not conceive and conceive again'. How then was it possible for a child to be born three months after its predecessor. ');"><sup>20</sup></span> — Abaye replied: It was the same drop but it was divided in two sections; the features of one of these were completed at the beginning of the seventh month and those of the other were completed at the end of the ninth month. IF A PLACENTA IS WITHIN A HOUSE, THE HOUSE IS UNCLEAN. Our Rabbis taught: If a placenta is in a house, the house is unclean; not because a placenta is a child but because generally there can be no placenta with which there is no child; so R. Meir. R. Jose, R. Judah and R. Simeon regard [the house] as clean. 'Do you not agree', they said to R. Meir, 'that if it had been carried out in a bowl into an outer room it would be clean?' 'Indeed', he replied. 'But why?'<span class="x" onmousemove="('comment',' Should then the first house be unclean. ');"><sup>21</sup></span>