American journal of pharmacy . me character as thatmaterial taken out by benzin. .Maj-ers reagent and potassium tri-lodide gave no evidence of alkaloids in the substances extractedfrom the alkaline aqueous solution. Am. Jour, , 1898. A Species of Conine Una. 327 That part of the ether extract of the plant which was insolublein water was treated with alcohol. This solvent dissolved 67-69 percent, of the extract, leavincj 1777 P^r cent, of insoluble alcoholic solution gave the following evidence of resinous mat-ter; the addition of water caused the precipitation of greenis
American journal of pharmacy . me character as thatmaterial taken out by benzin. .Maj-ers reagent and potassium tri-lodide gave no evidence of alkaloids in the substances extractedfrom the alkaline aqueous solution. Am. Jour, , 1898. A Species of Conine Una. 327 That part of the ether extract of the plant which was insolublein water was treated with alcohol. This solvent dissolved 67-69 percent, of the extract, leavincj 1777 P^r cent, of insoluble alcoholic solution gave the following evidence of resinous mat-ter; the addition of water caused the precipitation of greenish resin-ous substance; alcoholic solution of ferric chloride gave a darkgreen color; alcoholic solution of lead acetate produced a greenflocculent precipitate. The small amount of the ether extract,which water and alcohol failed to dissolve, was also insoluble inaqueous solution of potassium hydrate; alcoholic solution of potas-sium hydrate dissolved it, however, and it proved to be a mixture ofchlorophyll and resinous Fig. 5. After the exhaustion with petroleum ether and ether, the plantyielded 104 per cent, of matter to the solvent action of absolutealcohol. Water dissolved 84-97 per cent, of the extract. Theaqueous solution had a slight acid reaction toward litmus contained potassium chloride. A portion of the solution, acidifiedwith diluted sulphuric acid, gave a copious red precipitate withMayers reagent; another portion, prepared in the same manner,yielded a copious reddish precipitate with potassium of silver and gold were reduced by still other portions of theaqueous solution of the alcoholic extract. Some of the same solu- J-JO A Species of Commelina. /Am. Jour. Pliarn;I July. UML after the liquid under mvestigation with acid, a sreaterreduction ol Fehhngs solution occurred. Neither ether nor chloroform removed anything from the acidifiedaqueous solution with which they had been agitated. The acidifiedaqueous solution was then
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