Annual Report of the State Mineralogist for the Year Ending ..., 8. izdaja

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Stran 11 - Territory organized under the Act of the Legislature entitled "'An Act to provide for the establishment and maintenance of high schools in the Territory of Arizona," is the Union High School located at Phoenix, in Maricopa County.
Stran 704 - Order of Drop.— There is much diversity of practice in this respect. It is desirable to drop the stamps in such rotation as to insure an even distribution of the pulp on the several dies. Adjacent stamps should not drop consecutively, as this occasions accumulation of the pulp at one end of the mortar, in consequence of which the efficiency of the stamps at that end is reduced by having a decreased height of drop and a cushion that retards the pulverization of the ore. The stamps at the other end...
Stran 47 - ... penetrate all the ore. If no more water is absorbed, the liquor is drawn off at the bottom, care being taken to keep the tank full of water during the entire operation, which takes from four to five hours. In charging the tank, a gunny-sack is laid on top of the ore, where the...
Stran 299 - ... could hardly, by any possibility, fail to perceive that vibrations of the earth's surface are phenomena having a deep geological significance, and not mere local and superficial occurrences, without any inner connection with each other and with the past history of our globe. It is clearly shown by these maps that great earthquakes are connected in their place of occurrence with the position of the oceanic basins and with the existence of great mountain chains; also, that they are much more liable...
Stran 295 - ... yards, the depressed areas almost always nearly coinciding in the direction of their greatest longitudinal extension with that of the base of the mountains. On this side of the lake, which occupies almost the whole width of the valley, the fissures are mostly on the sage-brush slope, about half-way between the shore and the base of the Sierra, the slope being here about two miles in width. In some places, however, the cracks are quite near the edge of the lake.
Stran 347 - Л discovery entitles the person making the same to a mining claim embracing the discover)', noi to exceed one thousand five hundred feet in length by six hundred feet in width.
Stran 562 - ... population of Siskiyou is estimated at six thousand, being somewhat less than it was eight or ten years ago. SHASTA COUNTY. This county derives its name from Mount Shasta, formerly situated within its limits, but thrown into Siskiyou on the creation of the latter from a portion of Shasta, in 1852. Shasta is bounded on the north by Siskiyou, on the east by Lassen, on the south by Plumas and Tehama, and on the west by Trinity county. The county is watered by the Sacramento river and its numerous...
Stran 367 - ... beyond these, to the eastward, could occasionally be seen patches of gently undulating and well-wooded ground. They now approached the mountain-range of Conocor or Canuku, through which the Rupununi has forced a passage, carrying a width of about a hundred and thirty yards. Some of these mountains rise to the height of from two thousand to two thousand five hundred feet. They are of granite, well covered with wood, and are inhabited by a numerous tribe of Indians called Wapisianas or Mapeshanas....
Stran 289 - ... are crested with domes and pinnacles — forming a vast labyrinth, whose recesses, remain yet to be explored, and to disclose scenes of grandeur and beauty rivaling those presented by the Alpine chains. The Inyo and White Mountain range, on the other hand, is one narrow crest, almost unique in its narrowness and steepness. It rises very precipitously from the valley to a height of from eight thousand to eleven thousand feet above the sea, or four thousand to seven thousand feet above the plain...
Stran 704 - ... 5, 9, 3, 6 as a close favorite; while 1, 5, 9, 7, 3, 2, 6, 10, 8, 4 and 1, 5, 9, 3. 7, 10, 6, 2, 8, 4 are used. Speed of Stamps.— Heavy stamps and stamps having high drops should have correspondingly low speed. With 900- to 950-lb. stamps, having 6" to 7" drop, the speed should be from 85 to 95 drops per minute. With doublearmed cams, the speed must not be great enough to bring the cam into collision with the falling tappet, ie, the interval between the revolutions of the cam must be sufficient...

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