Talmud for Eruvin 207:4
מילתא אגב אורחיה קמ"ל דגמי מסי:
why were we not informed about a bandage?<span class="x" onmousemove="('comment',' And the permissibility of reed-grass, which is of less importance, could be deduced a minori ad majus.');"><sup>11</sup></span> - We were taught<span class="x" onmousemove="('comment',' By our MISHNAH:');"><sup>9</sup></span> indirectly that reed-grass heals.<span class="x" onmousemove="('comment',' And that, though it helps to heal the wound and its use on the Sabbath is elsewhere forbidden, it may be used in the Temple where its main purpose is to cover up a wound during the performance of the service.');"><sup>12</sup></span> <big><b>MISHNAH: </b></big>SALT MAY BE SCATTERED<span class="x" onmousemove="('comment',' On the Sabbath. Lit., ' (they may) crush (lumps of) salt'.');"><sup>13</sup></span>
Jerusalem Talmud Eruvin
Producing sound mechanically is rabbinically forbidden on the Sabbath. An exception is made for medical purposes. It is permitted to make a contraption which can be put together without violating any Sabbath rule, which produces a monotonous sound which induces sleep in a sick person. For this one lifts water in a siphon which delivers water into an ˋedeq which according to the Gaonic Commentary to Tahorot (Otzar Hagaonim III, Eruvin, pp. 79,104) is a vessel with an opening on top and capillary holes at the bottom. If the vessel is kept filled steadily and a metal plate is put under it at some distance, the water coming though the capillary holes will create a faint monotonous sound which induces sleep., משתמיהה156The word is unexplained (and not listed in the Dictionaries, from Levy to Sokoloff). One may see its root in Arabic סמה “to run steadily” (said of horses).. And sprinkles with an ˋedeq157In Babylonian sources אדק, ארק. The etymology is unknown., some want to say 158Meaning and etymology unknown.עיררה; some want to say, a small water pitcher159Diminutive of Syriac קוקא “water pitcher” (following Sokoloff.). 160Babli 104a. In a courtyard where it started to rain and there was a house of mourning or a wedding feast, one takes straw and beats it down161To make it possible for visitors to cross the yard. on condition that he should not do it on the Sabbath in the way he does it on a weekday. It was stated: One does not fill with a lentil162The name of any ovaloid vessel (cf. Avodah zarah Chapter 5, Note 195). of the Sabbath. If he is afraid for the rope or the cord it is permitted163If he needs much water and is afraid his old rope will break, he may draw water in a vessel not usually used for the purpose since then this is not done the way one usually does it during the week..