alkalies. Ammonia has no effect on it at first, but after it has 

 been kept for some time the whole solidifies to a colourless jelly. 

 Tannic acid precipitates white, acetate of lead likewise, but an 

 excess of it re-dissolves the precipitate. Subacetate of lead 

 occasions no tui-bidness in the alcoholic solution, but a considerable 

 one in the aqueous solution. Molybdate of ammonia produces a 

 strong white turbidness with sulphate of Acolyctin. Chloride of 

 gold yields a pale yellow precipitate j concentrated sulphuric acid 

 causes no change of colour. 



Acoiielliii = Narcotin. 



Acoilitic Acid = C12 H3 O9 + 3H0. In the herb of species 

 of Aconitum and Delphinium Consolida, according to Baup also in 

 Equisetum (see Equisetic Acid). Extract with water, saturate with 

 carbonate of soda, precipitate the sulphuric and phosphoric acids 

 with acetate of baryta, filter, preciiDitate with acetate of lead, 

 wash the precipitate and decompose it in the moist state by sul- 

 phuret of hydrogen, separate the liquid by filtration from the 

 sulphide of lead, concentrate by evaporation, and leave it to 

 crystallise. It appears in white warts and needles, without smell, 

 of a pleasant acid taste, fuses at 140° and decomposes in higher 

 temperatures, dissolves readily in water, alcohol and ether. The 

 salts of the alkalies and alkaline earths are readily soluble, most 

 of the other salts only with difficulty. 



Acoilitill = Ceo H47 NO14. Specific alkaloid of the root of 

 Aconitum Napellus, A. ferox and jDrobably of other species of this 

 genus of Ranunculaceae. Extract with hot water, acidulated by 

 sulphuric acid, press out, evaporate to a syrupy consistence, saturate 

 not quite sufficiently with carbonate of soda and add a sufficient 

 quantity of calcined magnesia to give it a faint alkaline reaction, 

 shake several times with ether, mix the ethereous solutions and 

 distil off the solvent, heat the remnant with water and add diluted 

 sulphuric acid by drops until it is dissolved, drive off the last 

 traces of ethei-, leave to cool, filter, precipitate the filtrate with 

 ammonia, collect the white flocky precipitate occasioned thereby, 

 wash and dry without application of heat. White, voluminous, 

 dull, amorphous, electric powder withovit odour, but even in the 

 most minute particles of remarkably irritating effect upon the 

 mucous membranes of the nose; of at first faintly bitter, after- 

 wards long-lasting acrid, burning and lastingly harsh taste. It 

 fuses at 80-85° under loss of 25 per cent, (water) and decomposes 

 in higher tempei-atures, while emitting vapoiu-s of acid reaction. 

 It dissolves in 1316 parts cold and in 43 jiarts boiling water, and 

 these solutions have a neutral reaction; very readily soluble in 

 alcohol, ether, benzol, chloroform and suljihide of carbon, and 

 these solutions have a faint alkaline reaction when concentrated; 



