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Show 10 INTER-MOUNTAI- covory lias been the law of exemption from annual assessment work. Virginia Enterprise: Silver City Is excited over the rich strike made in the Boston-Lestmine. The ore will assay $GOO to the ton and it is estimated that $100,000 is in sight. Silver City is the poor mans paradise. For months they may work on a grubstake, and all of a sudden they run across a gold pocket and take out thousands of dollars. A customs mill in Silver is kept running night and day by prespectors. Bodie Miner: J. T. Courchaine, William Stewart and B. F. Cottrell on the 1st of January located the Aurora tailings, which had - been accumulating since the early days of that once famous camp. Owing to the great growth 'of sagebrush on these tailings, no one realized the extent or value of them, but Mr. Courchaine, who had known of these for the last twTelve years, was on the ground first and located forty of which is covered with acres, one-ha- lf rich tailings. These gentlemen have a snug fortune awaiting them in the working of these tailings by the cyanide process. They will begin work on them about the first of April or as soon thereafter as possible. er . . . Pine Nut District. Correspondence Beno Journal: People who are inclined to belittle the expected mining boom must bear in mind that outside capital has already begun to invest on a large scale. The Zirn and Schultz mine has been sold for . $70,-00- 0; the Buckeye, as a matter of record, has been bonded for $250,000 by Lane, Hayward and the Hobart estate, who are willing, to expend a lik' um in constructing a ditch to carry tne water a distance of sixty miles, from Fish valley, in Alpine county, Cal., to the mines, and the cost will probably be increased to double that amount in the event of substituting pipes for an impracticable open, ditch.- Process. Denver Mining Industry: The Pelatan-Clerici process of extracting gold and silver, while still to some extent in the experimental stage, is one which . may be said to have a demonstrated value, and from which much is expected. It will be tested for the first time Pelatan-Cleri- ci on a commercial scale by the opening of the large fifty-to- n plant at De La- mar, Idaho, some time next month. The operation, of the five-to- n plant in the experimental wTorks at Denver has been so successful that no doubt exists of the success of the De Lamar plant. When the works there are fully inaugurated, many other companies stand ready to order similar plants, and the process will speedily come into prominence. Meantime the Denver works are busy in experimenting upon new ores. Recent tests on Cripple Creek and Telluride ores have proved very satisfactory, one of the latest being that of a ton of ore from the latter point for Messrs. Ward and Wrolcott. been made for the Arrangements have erection of a fifty-to- n plant at the mine, near the City of Mexico, in the spring. The ores from this early are of mine a very refractory nature, arsenic and antimony, but containing tests by this process have shown that it will recover a very large percentage of the values. Es-peran- za Goldite Argument Upset. The time has passed by when Colorado as a State can have any selfish motive for urging the free coinage of silver. Her production of the precious d metals for the year 1895 will buy more of the worlds goods under the present single standard system than it would be able to do under honest bimetalism. This fact, for fact it is, and a stubborn fact at that, will answer to the gold give complete last-ditc- h standard argument, that Colorados reason for asking for free coinage is to make a market for the one-thir- product of her silver mines. Denver Industrial Reporter. MINING REVIEW. N present in successful operation on low grade ores and tailings In various mills PROCESS. in Colorado, New Mexico, Arizona, Utah, Idaho, Montana, South Dakota, The following statement was written Oregon, Nevada and California. Prior connected a to its adoption these ores and tailings by gentleman prominently with the MacArthur-Forreprocess in were yielding no revenue to their this country, and published in the Min- owners. Colorado The Metallic Extraction in error is in It stating ing Industry. president, company, Mr. Eben Smith, MacArthur-n use in a is been the process described by have operating plant for the past four the Mercur company, which found it Forrest months at Florence. The mill Is now necessary to modify the MacArthur-Forre- being increased to a capacity of 300 process in several important tons per diem. Mr. David II. Moffat, National bank, particulars. Neither have the. cyanide president isof the First a large shareholder in this users In the Camp Floyd gold belt been Denver, The Livingstone Gold Minable to separate the gold from the company. ing company, Boulder county, have in zinc by vigorously shaking water, produced over $40,000 since being in and fusing directly into bullion bars. operation. The Brodie mill, fifty tons per diem plant at Cripple Creek, has But the article is of interest. for the past six months over No subject has received more con- produced $54,000 worth of bullion. stant scientific and practical attention n Mercur mine Utah The the than the used last has the cyanide process for the fifty years during reduction of ore, i. e., of how to extract past three years, and has paid divito the amount of $350,000. The from ores the percentages of gold and dends is about 175 tons every mill silver resisting amalgamation. It is twenty-fou-capacity r hours. When the Mercur four last the within company first adopted cyanide it was only, however, in debt. The Marion company years that chemical processes have for deeply the first time in fifty years solved the is treating over fifty tons per diem. Sunshine company have comproblem, and affected the whole com- The mercial world by enormously increas- menced operations with a plant of 150 tons daily capacity. The above mills ing the production of the precious are all in the Camp Floyd mining dismetals. are operIn the United States, abandoned de- trict. inSeveral smallerof plants Utah. other parts posits of gold and silver ores are being ating South Dakota The Black Hills Gold reopened by the use of the cyanide these that and Silver Extraction company are process with the certainty plant at Dead-wooenterprises can now be made highly operating a fifty-to- n Recently a fifteen days run is profitable. said to have produced a bar of bullion The known existence of gold and silver deposits similar in valued at $30,000. The Custom M. & M. tailing plant. many respects to those found in South Co. own a twenty-five-to- n Nevada The Union Mill company, Africa is not alone sufficient, but, in combination with the cyanide method Tuscarora, have been operating a large to recover the values successfully, heap of tailings. Two other plants should bring up the production of the have been treating tailings for some precious metals in this country to a time past. figure second to none in the world. New Mexico For three years past In substance, the MacArthur-Forrehave the North Homestake invention consists not merely in dis- been treated successfully.tailings covering that a dilute solution of Arizona Two fifty-to- n plants cyanide could be used to extract gold at Wickenburg, Maricopa tailing county, have from its ore, but showing the public been operating successfully. The Conthe best practical method of doing it Gold M. Co. and the Harqua Hala by leaving baser metals behind, which gress are each treating over 100 tons had never occurred to any one before, M. Co. The Grand Central mine and is the keynote to the whole cyanide per diem. is also being successfully treated process. The process consists in break- dump the cyanide process. ing the ore to a granular product and byMontana The Revenue fifty-to- n then subjecting it to a weak cyanide solution. When the gold in the ore is plant, in Madison county, and the M. & M. Co. are using know-to be dissolved, the cyanide of gold solution is allowed to trickle cyanide. are through a mass of bright zinc shavings atCalifornia The following mines with present successfully operating and trickles out gold free. The porous mass of zinc forms a chemical filter, cyanide: The Bodie M. & M. Co., Mono which at once precipitates and collects county; the Fulton Foundry; the Stanthe precious metals. "When the gold dard Con. M. Co.; Messrs. Parr and is deposited, the filliform mass of zinc Tyack and Judge Bicknel. Total tonwith gold and silver powder adhering nage per month of 10,000 tons. Oregon. The Eureka and Excelsior is vigorously shaken in water, when Baker county; capacity, 50 tons the precious metals fall off. The gold mines. diem. and silver is then collected and fused per The completion of mills now in course directly into bullion bare of almost of construction and for wiiich licenses pure gold and silver. been have granted by the Gold and The cost of treating crude ores in the Silver Extraction of America, United States averages $3 per ton, with limited, controllerscompany MacArthur-Forreof the extractions varying from 80 to 90 per for the United States, process cent of the precious metals. Tailings should increase the within the are treated at an average cost of $1 per next twelve months tonnage of ores treated by ton, with extractions of 70 to 80 per cyanide to at least 50,000 tons per cent. month, and add lavgely to the producto of the tion of gold in the United States. the According report The possibilities of the process are Chamber of Mines of date such of October, 1895, forty-thre- e that it is safe to predict cyanide cyanide recover as much gold, if not more, will mills at Johannesburg run on tailings, all of them using the cyanide, or MacAr- in the United States than it is doing cent of the total thur-Forrest, process. In September in Africa, whereis40 per the MacArthur-Forreby over 200,000 tons of tailings were gold produced cyanide process. treated. The total product claimed to Gold The and Silver Extraction comhave been recovered by cyanide for the of America, limited, was organmonth of September is valued at pany in the fall of 1893 and commenced ized $1,000,000. active operations in the early part of In New Zealand the MacArthur-Forre1894. The rapid strides made introducprocess has produced 99 per cent ing the process is on account of the of the Upper Thames output and 80 merit of the method, which at present per cent of the Kuaotunu output. is well ahead of any other chemical the United In States the process is at process. MAC CYANIDE ARTHUR-FORRES- T st 100-to- st well-know- d. low-gra- de st Am-mon-Stiv- ers n st Wit-watersra- nd st st |