Rav Hunna then adds a prescription for a tertian fever, and Rabbi Yochanan gives the following as effective against a burning fever: — Take an iron knife, and having fastened a papyrus fibre to the nearest bramble, cut off a piece and say, " And the Angel of the Lord appeared to him in a flame of fire," etc., as in Exod. iii. 2. On the morrow cut off another piece and say, "The Lord saw that he (the fever) turned aside; 8 then upon the third day say, " Draw not hither, " and stooping down, pray, " Bush, bush! the Holy One — blessed be He! — caused His Shechinah to lodge upon thee, not because thou art the loftiest, for thou art the lowest of all trees; and as when thou didst see the fire of Hananiah, Mishael, and Azariah, thou didst flee therefrom, so see the fire (fever) of this sufferer and flee from it.* Shabbath, fol. 66, col. 2, etc.