Reference for Eruvin 165:6
כי אתא רב דימי אמר שיגר בוניוס לרבי מודיא דקונדיס דמן נאוסא ושיער רבי מאתן ושבע עשרה ביעין
includes the egg itself and its shell,<span class="x" onmousemove="('comment',' Lit., 'like itself and like etc. This size obviously is not exactly a half of any of the sizes prescribed by (a) R. Judah, (b) R. Jose or (c) Rabbi for the defilement of one's body according to whom it should have been either (a) an egg minus a fraction or (b) a large sized egg and its shell, or (c) in egg and a twentieth.');"><sup>14</sup></span> but the Sages explained: The egg only, exclusive of its shell.<span class="x" onmousemove="('comment',' A size which is smaller even than half of the one prescribed by R. Judah and much more so than those prescribed by the others.');"><sup>15</sup></span> Rafram B'Papa citing R'Hisda stated: This<span class="x" onmousemove="('comment',' The Baraitha prescribing the size of half a peras.');"><sup>16</sup></span>