and transferring.. $0.042 $0.294 $0.022 $0.008 $0.366 Alkaline filtering and transferring 0.070 0.017 0.023 0.004 Cyanide treatment and trans 0.114 TABLE 23.-ALVARADO MINING AND MILLING COMPANY, PARRAL, CHIHUAHUA, MEXICO2 It should be noted that this table of costs represents the work in 1918 under the adverse conditions caused by the European war in addition to those arising from the unsettled condition of Mexico itself. "Mill and Practice of the Nipissing Mining Co." by JAMES JOHNSTON, A. I. M. E., February, 1914. 2 Kindly furnished by T. G. Hawkins, Jr., Resident Manager. CHAPTER XIV TABLES Antidote for Cyanide Poisoning The Committee of the Chemical, Metallurgical and Mining Society of South Africa,1 appointed to investigate cyanide poisoning, recommend as an antidote the following: 1. Thirty cc of a 23 per cent. solution of ferrous sulphate. 2. Thirty cc of a 5 per cent. solution of caustic potash. 3. Two grams of powdered oxide of magnesium (light). In every cyanide-room there should be kept three boxes, containing1. A metal receptacle to hold about a pint, and a spoon. 2. A blue hermetically sealed phial, containing 30 cc of a 33 per cent. solution of ferrous sulphate. 3. A white phial, hermetically sealed, containing 30 cc of caustic potash. 4. A packet of oxide of magnesium (light). Preparation of Antidote.-Quickly empty the contents of the blue phial, of the white phial, and of the magnesia package into the metal receptacle, and stir well with the spoon. This should be done as rapidly as possible, as the patient's chance of life depends on promptness. Administration of the Antidote.-If the patient is conscious, make him swallow the mixture at once and lie down for a few minutes. If the patient is not conscious, place him on his back and pour the mixture down his throat in small quantities, if necessary pinching his nose in order to make him swallow. Incite Vomiting.-After the antidote has been given, try to make the patient vomit by tickling the back of his throat with a feather or with the finger, or give a tumblerful of warm water and mustard. NOTE. It must always be kept in mind that promptness of action is the first essential, as the poison acts quickly. The box of remedies should never be removed from its place, but always kept complete and ready for an emergency. It is advisable to keep the remedies in duplicate in case of the accidental breaking of a sealed bottle. In all cases of cyanide poisoning medical aid should be summoned without delay. Tyler Standard Sieves This screen scale has as its base an opening of 0.0029 in. which is the opening in 200 mesh 0.0021 in. wire, the standard sieve as adopted by the Bureau of Standards of the U. S. Govt., the openings increasing in the ratio of the sq. root of 2 or 1.414 except in the sizes Nos. 65 to 200 which increase in the ratio of the 4th root of 2 or 1.189. 1 1 Journal Chem., Metall. and Min. Soc. of S. A., May, 1904. |