I.) maintains, that the whole of Zoroaster's religion was founded on the science of medicine, and it is true that there are a great many medical directions to be found in the Avesta.
In the Vendidad, Farg.VII.there is a detailed list of medical fees.

"The physician shall treat a priest for a pious blessing or spell, the master of a house for a small draught animal, etc., the lord of a district for a team of four oxen.

If the physician cures the mistress of the house, a female ass shall be his fee, etc., etc." We read in the same Fargard, that the physician had to pass a kind of examination.

If he had operated thrice successfully on bad men, on whose bodies he had been permitted to try his skill, he was pronounced "capable for ever." If, on the other hand, three evil Daevayacna (worshippers of the Divs) died under his hands, he was pronounced "incapable of healing for evermore."] Kassandane was very gentle with her son; she begged him not to yield to passionate anger, and to remember what a sad effect every such outburst had on his health.
"Yes, mother, you are right," answered the king, smiling bitterly; "I see that I must get rid of everything that rouses my anger.

The Egyptian must die, and my perfidious brother shall follow his mistress." Kassandane used all her eloquence to convince him of the innocence of the accused, and to pacify his anger, but neither prayers, tears, nor her motherly exhortations, could in the least alter his resolution to rid himself of these murderers of his happiness and peace.
At last he interrupted her lamentations by saying: "I feel fearfully exhausted; I cannot bear these sobs and lamentations any longer.