Remedies which the God Su (god of the air), the God Seb (god of the earth), the Goddess Nut (goddess of the sky), and other divinities had devised are comprised in this collection. This is an application which Isis prescribed for Ra’s headache:--Coriander, opium, absinth, juniper, (another fruit), and honey. Remedies are also prescribed in this papyrus for diseases of the stomach, the abdomen, and the urinary bladder; for the cure of swellings of the glands in the groin; for the treatment of the eye, for ulcers of the head, for greyness of the hair, and for promoting its growth; to heal and strengthen the nerves; to cure diseases of the tongue, to strengthen the teeth, to remove lice and fleas; to banish pain; to sweeten the breath; and to strengthen the organs of hearing and of smell. Quantities are indicated on the prescriptions by perpendicular lines thus: | one, || two, ||| three. Each of these lines represents a unit. Ebers calls the unit a drachm and supposes it to be equivalent to the Arabic dirhem, about forty-eight English grains. The Egyptian system of numeration was decimal. Up to nine lines were used; [symbol=bridge] was ten, and two, three or more of these figures followed each other up to ninety. Then came [symbol=C] a hundred, [symbol=lotus] a thousand, and so on. Fractions were shown by the figure [symbol=oval], and this with three dots under it meant one-third, with four dots one-fourth, or with the 10 sign under it, [symbol=oval with bridge under] one-tenth. Half was represented by [symbol=double horizontal bar]. The unit of liquid measure is believed to have been the tenat, equal to three-fifths of a litre, or rather more than an English pint. In the British Museum “Guide” Dr. Budge quotes the following prescription “for driving away wrinkles of the face,” and gives the same in hieroglyphics:--“Ball of incense, wax, fresh oil, and cypress berries, 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.