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 equal parts. Crush, and rub down, and put in new milk, and apply it to the face for six days. Take good heed." Generally medicines are directed to be taken or applied for four days; the ingredients are very often four; and in many cases incantations are to be four times repeated. The Pythagoreans swore by the number 4, and probably their master acquired his reverence for that figure from Egypt.

A sacred perfume called kyphi is prescribed to perfume the house and clothes for sanitary reasons. It was composed of myrrh, juniper berries, frankincense, cyprus wood, aloes wood, calamus of Asia, mastic, and styrax.

Among the Greek Papyri discovered in the last decade of the 19th century at Oxyrinchus one quoted by Messrs. Grenfell and Hunt in their work on these papyri (Vol. II., p. 134) gives about a dozen formulas for applications for the earache. These are believed to have been written in the 2nd or 3rd century One is:—Dilute some gum with balsam of lilies; add honey and rose-extract. Twist some wool with the oil in it round a probe, warm, and drop in. Onion juice, the gall of an ox, the sap of a fir tree, alum and myrrh, and frankincense in sweet wine, are among the other applications recommended.