That of the horse is condemned, being reckoned among the poisons only. Hence it is that the Flamen[2277] of the Sacrifices is not allowed to touch a horse, notwithstanding that it is the custom to immolate one[2278] of these animals at the public sacrifices at Rome. CHAP. 41.—BLOOD. The blood, also, of the horse is possessed of certain corrosive properties; and so, too, is mare’s blood—except, indeed, where the animal has not been covered—it having the effect of cauterizing the margins of ulcers, and so enlarging them. Bull’s blood too, taken fresh, is reckoned[2279] among the poisons; except, indeed, at Ægira,[2280] at which place the priestess of the Earth, when about to foretell coming events, takes a draught of bull’s blood before she descends into the cavern: so powerful, in fact, is the agency of that sympathy so generally spoken of, that it may occasionally originate, we find, in feelings of religious awe,[2281] or in the peculiar nature of the locality. Drusus,[2282] the tribune of the people, drank goats’ blood, it is said; it being his object by his pallid looks to suggest that his enemy, Q. Cæpio, had given him poison, and so expose him to public hatred. So remarkably powerful is the blood of the he-goat, that there is nothing better in existence for sharpening iron implements, the rust produced by this blood giving them a better edge even than a file. Considering, however, that the blood of all animals cannot be reckoned as a remedy in common, will it not be advisable, in preference, to speak of the effects that are produced by that of each kind? CHAP. 42.—PECULIAR REMEDIES DERIVED FROM VARIOUS ANIMALS, AND CLASSIFIED ACCORDING TO THE MALADIES. REMEDIES AGAINST THE POISON OF SERPENTS, DERIVED FROM THE STAG, THE FAWN, THE OPHION, THE SHE-GOAT, THE KID, AND THE ASS.