Arizona miner., 1866-03-14
QUARTZ MILLS.

CTS are naturally turning their attention to the introduction of machinery. The small mill on Lynx Creek, and those at Wicken- burg. arc in successful operation, and it Is the common opinion that we have scores of ledg es that will pay from the start, as well as the Accidental and Yulture.
 The popular prejudice is all in favor of the old stamp mills. The failure of all substi- tutes tried to this time, and particularly of the new -fangled crushcrs, first used at Wick enburg, has confirmed this prejudice. While we have not yet seen anything equal to the stamps, we believe they are both clumsy and inadequate, and likely to be superseded at an early day. For the present, however, it must be considered rather risky to incur the cost of transporting any experimental ma chinery to this Territory. Better let expcr iments be made where they will be less ex pensive. Of several mills now upon the way . here we believe an but two have stamps. The exceptions are Gardner's Thunlerbolt . Cru,hcrs, an invention highly commended at the East, and now being extensively tried iii Nevada Of all the new machinery we hear of none with better reputation. One of our citizens, largely interested in mining, lately wrote to San Francisco for estimates vf tlte cost CT both five and ten stamp mills, the weight, etc We are permitted to make public the estimates received, and we doubt not they will be of interest and use to our people as enabling them to know the exact CTffnsc of iirst-class machinery, and where ts gei Upon this latter point we would say that from the remarks of Idaho and Mon tana Correspondents, it would appear that the mills obtained in the East, and put up in those Territories, are proving very unsatisfactory, and it is acknowledged that those of Califor- mia arc made in a much superior manner, and in the end are much cheaper, especially when the cost of transportation is considered. This item here is altogether in favor of Cali fornia. We are assured that it cost more to transport the yickroy mill here, over the plains from St. Louis, than the total price of the mill in San Francisco and cost of freight, ria the Colorado, would have been. The loss of time is also an important consideration. By the present facilities, which will doubt less soon be improved, mills may be brought
 
 with ease.
 The following estimates are for everything eaani1ite to the running of the mills, includ- s,g various extras. Estimates Nos l and
 fforn the Pacific Iron Works; estimates fos. g. and from the Fulton Foundry .Ae most extensive and experienced estab- ,shments ill San Francisco:
 ESTIMATE NO. 1.
 s-stauif, mill, with I0inch engine, (2j-horsc pow zrl Furnishing ample power to run 10 stamps, oi sS@fi i5 # needed. Hunld he as follows. say One aoriz0nial engine, l0-ineh cylinder, with hywhcel governor, etc, complete. One tubular boiler, 42 neh diameter, and l4 feet long, with trc-front srate bars, smoke stack, steam sHagc safety valve team pipe, pumps, etc, complete. One 5-stamp battery, medium height mortar, heavy stamps, gith shoes and dies, bolts, etc. One Pratcrs Pat ent concentration fitted up. All necessary shaft 1g pullies, boxes, bolts washers, etc.. making ron work of mill complete This mill wc can furnish in best style of workmanship throughout for S3 800 gold coin, and the Federal excise tax. Weight about +, 500 pounds
 ESTIMATE NO.
 The same engine and boiler as In the foregoing estimate, with 10 stamps, 2 conccntrators, and other parts to correspond will cost g. 100 gold coin and tax. Weight about 25 0O0 pounds. Ten extra shoes and dies, with such duplicate parts as it mght be well 10 have with set Of blacksmith tools and carpenters tools, with necessary beitng extra iron, nails etc, will about $l eco more
 ESTIMATE NOS
 s,ne engine, S. \ lS-Inch cylinder, tubular boil. ST i4 feet by 40 inches One 5-stamp battery, (500 pounds cleh,) complete. Yarncys or Wheeler's transformations l Prater's concentrator. All coun- ter shafIng and pullies, bcting carpenters and blacksmth's tools, quicksilver aud extras. Price, <5,2jO gold coin. Total weight, about OOO0 pounds. This mill will work from five to six tons every twcnty-iour hours, and do t properly.
 ESTIMATE No.4.
 One engine. To- \ 2O-inch cylinder 1 tubular boiler, IA feet 42 inches. Two 5-stamp batter les, tJOO pounds eaeh,) complete. Varney or Wheeler amalgamators. Prater eOnccntrators. All counter shafting and pullies, belting, carpen- tcr's and blacksmith's tools, quicksilver and ex. trls. Price Ss ,1jO gold coin Total weight about 50,0OO pOunds This mill will work twelve tons of ore every twcnty-four hours, and do it well
 ESTIMATE NOS.
 One engine, B. ls-ineh cylinder. l tubular boiler, II feet by 70 inches. One 5-stamp battery, (JOO pounds eachD complete. Two Moore's grinders and analgamatOrs, counter shafting, pull Y hes, quicksifer, betting, carpenters and black smiths tools, and extras. Price, 5000 gold coin Total weight, about 34 900 pounds. This mill will work from 70 tO 2i tons of rock every twen- ty-iour hours By deducingone grinder the mill will cost 5000 and weight be reduced 10 about 2s,OOO pounds lt will then work from 70 10 r. tons of ore every twcnty-four hours.
 It will be observed that estimates Nos. end 2 do not include amalgamators which are embraced in the remaining estimates, and which add largely to the cost and weight. We hear that MT. Borger has determined to amalgamate in arrastras, but we think he will soon get tired of it.
 If we allow three cents per pound freight to La Paz, and seven cents from there here which is considered very reasonable, it will cost as follows, Co bring the mills to Prescott and vicinity, ria No. ], weight ls,jOO pounds, Sl,s $50. No.2 weight 2, GOO pounds, S25lD Nh q Ueight 9O OayO ,.,,,d- ga GoO