Reference for Niddah 51:19

לא שהשליא ולד אלא שאין שליא בלא ולד

it may be inferred that the embryo clings to the sandal at the middle of the latter<span class="x" onmousemove="('comment',' Sc. the head of the embryo is in contact with the centre part of the sandal. ');">¹⁸</span>

Jastrow

Jastrow

Jastrow

Jastrow

Jastrow

Jastrow

Jastrow