Astacus fluviatilis (Cancer astacus, Linn.) Class , Crustacean; Sub Order , Macroura. Common Name , crawfish. Preparation , Tincture, prepared by pouring alcohol on the pounded living animal. Authorities. Buchner's provings, Hygea, 17, p. 1; 1 and 2 , Two men proved large doses of the tincture, repeated doses; 3 , case reported by Buchner, loc. cit., of a man who ate a soup made of crabs; 4 , Cloyd, Lond. Med. Gaz., 1833, quoted by Buchner, loc. cit., a man ate heartily of crabs; 5 , Seherin von Prevorst, 1, 124, from Buchner, l. c., a woman ate three spoonfuls of crab soup; 6 , Hagedorn, Ephem. Nat. Cur. Ann., 3, Obs., 35, p. 99, effects of eating crabs; 7 , Petrus Rommelius, Ephem. Nat. Cur. Ann., 4, Obs., 25, p. 61, effects of eating crabs; 8 , Bonetus, from Buchner, l. c., effects of eating warm crabs; 9 , Plenk, Bromatolagie, p. 157, from Buchner, l. c., statement of effects; 10 , Menage, Gaz. Méd. de Paris, 1840, from Roth. Mat. Med.