be remarked that children ought to be treated with gentler remedies, and adults with more active.—I have now to give you an account of the seasons of the year in which each of these complaints occur, and what things ought to be taken and avoided. I begin with the winter solstice.—_Of the winter solstice_: This season disposes men to catarrhs and defluxions, until the vernal equinox. It will be proper then to take such things as are of a heating nature, drink wine little diluted, or drink pure wine, or of the decoction of marjoram, and indulge in venery. From the winter solstice to the vernal equinox are ninety days.—_Of the vernal equinox_: This season increases phlegm in men, and the sweetish humours in the blood until the rising of the pleiades. Use therefore juicy and acrid things, take labour, and indulge in venery. To the rising of the pleiades are forty-six days.—_Of the rising of the pleiades_: This season increases the bitter bile, and bitter humours in men, until the summer solstice. Use therefore all sweet things, laxatives of the belly, and indulge but sparingly in venery. To the summer solstice are forty-five days.—_Of the summer solstice_: This season increases the formation of black bile in men, until the autumnal equinox. Use therefore cold water, and everything that is fragrant; and do not indulge in venery, or do so more sparingly than is generally directed regarding these matters. To the autumnal equinox are ninety-three days.—_Of the autumnal equinox_: This season increases phlegm and thin rheums in men until the setting of the pleiades. Use therefore remedies for removing rheums, have recourse to acrid and succulent things, take no vomits, and abstain from labour and venery. To the setting of the pleiades are forty-five days.—_Of the setting of the pleiades_: This season increases phlegm in men until the winter solstice. Take therefore all sour things, drink as much as is agreeable of a weak wine, use fat things, and labour strenuously. To the winter solstice are forty-five days. * * * * * COMMENTARY. This Diocles was an ancient physician of great eminence. Galen often mentions him along with his idol, Hippocrates, as the greatest of medical authorities. Cælius Aurelianus frequently quotes his opinions in respectful terms, although belonging to a different sect from his own. Pliny says that he was next to Hippocrates in fame as in time. Octavius Horatianus calls him the younger Hippocrates. Athenæus mentions a work of his on Poisons, and another on Cookery.