Page:Popular Science Monthly Volume 19.djvu/252

240 in treating the natural waters. One or two hundred grammes (three and a half to seven ounces) of tilled earth mixed with a pint of



water gave a similar precipitate of iodoform when distilled and exposed to the reactions employed in the other experiments. The precipitation



of iodoform by the addition of iodine and carbonate of soda is a very evident test of the presence of alcohol. Iodoform