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 died at Antioch the Emperor had his library searched, and the true recipe for the famous medicine was there found in a book which Pachius had prepared and had dedicated to the Emperor. Tiberius handed the formula to Scribonius with instructions for its publication. The formula given by Scribonius, which it will be noted contained no aloes, was as follows:—Colocynth, agaric, germander, white horehound, Arabian stœches (a sort of lavender), of each x; opoponax, sagapenum, parsley seeds, round birthwort root, white pepper, of each v; spikenard, cinnamon, myrrh, and saffron, of each iv; despumated honey, 3 lb. 3 oz. 5 drachms, to make an electuary.

It is not necessary to describe the other hieras devised by later authorities, but it may be noted that the Hiera Tralliani compounded by Alexander of Tralles (about 550 ) contained scammony, and that he advises concerning it that the quantity of scammony shall not be increased, as it appears some were inclined to do, not knowing that thereby they make it useless. For he says it is not the intention that the medicine should be carried immediately through the system. It should be detained in the body and conveyed to the remote parts so as to correct the various humours, open the passages, remove the obstructions of the nerves, and make way for the motion of the spirits. This was the formula given in the P.L. 1721 under the name of Hiera Diacolocynthidis, but our present-day hiera picra has descended from the Hiera Simplex of Galen. The old dispensatories up to the eighteenth century give a liberal choice of Hieras, among which were the Hiera Simplex Galeni cum Agarice, Hiera Logadii, Hiera Antiochi, Hiera Archigenes, Hiera Tralliani, Hiera Rufi, Hiera Justi, Hiera Constantini, and others. Originally