A Manual of Land Surveying: Comprising an Elementary Course of Practice with Instruments and a Treatise Upon the Survey of Public and Private Lands, Prepared for Use of Schools and of SurveyorsRegister printing and publishing house, 1886 - 464 страница |
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Страница 17
... Turning to Table II , on page showing 12 ° at the top , and opposite 18 ' on the left , we find sin 12 ° 18 ' = .21303 and cos 12 ° 18 ' - .97705 . Again , on page showing 53 ° at the bottom , and opposite 35 ' on the right , we find ...
... Turning to Table II , on page showing 12 ° at the top , and opposite 18 ' on the left , we find sin 12 ° 18 ' = .21303 and cos 12 ° 18 ' - .97705 . Again , on page showing 53 ° at the bottom , and opposite 35 ' on the right , we find ...
Страница 18
... Turning to Table IV , on page showing 34 ° at the top and opposite 23 ' on the left , we find log sin 34 ° 23 ' = 9.751839 and log cos 34 ° 23 ′ = 9.916600 . On page showing 72 ° at the bottom and opposite 40 ' on the right , we find ...
... Turning to Table IV , on page showing 34 ° at the top and opposite 23 ' on the left , we find log sin 34 ° 23 ' = 9.751839 and log cos 34 ° 23 ′ = 9.916600 . On page showing 72 ° at the bottom and opposite 40 ' on the right , we find ...
Страница 67
... Turning with a free horizontal motion , the pointed ends of the needle traverse the graduated circumference of a circle which forms the bottom of the box . The plane of the sights cuts this circumference in two points marked N , and S ...
... Turning with a free horizontal motion , the pointed ends of the needle traverse the graduated circumference of a circle which forms the bottom of the box . The plane of the sights cuts this circumference in two points marked N , and S ...
Страница 68
... turns . the tan- gent - screw until the needle of his compass indicates the same bearing as that given in the old field - notes of the survey . Then screwing up the clamping nut underneath the vernier , he can run all the other lines ...
... turns . the tan- gent - screw until the needle of his compass indicates the same bearing as that given in the old field - notes of the survey . Then screwing up the clamping nut underneath the vernier , he can run all the other lines ...
Страница 69
... turn the sights C in the direction of one of the sides of the angle , as OB . Let NS represent the direc- tion of the needle on coming to rest . The line upon which the needle settles is called the Mag- netic Meridian The angle BON is ...
... turn the sights C in the direction of one of the sides of the angle , as OB . Let NS represent the direc- tion of the needle on coming to rest . The line upon which the needle settles is called the Mag- netic Meridian The angle BON is ...
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A Manual of Land Surveying: Comprising an Elementary Course of Practice with ... Francis Hodgman Приказ није доступан - 2015 |
A Manual of Land Surveying: Comprising an Elementary Course of Practice with ... Francis Hodgman Приказ није доступан - 2018 |
Чести термини и фразе
ABCD abscissas acres add hr adjustment allel axis azimuth bearing called chains clamp convenient corner in line cosec course declination arc deputy difference direction dist divided drain east and west equatorial lines error established Examples.-1 feet field notes find the angle find the area formula fractional given line given point ground hight horizontal inches instru instrument intersection June 26 Land Office latitude length limb logarithm marked meander corner measure ment merid meridian distance needle north and south opposite parallel perpendicular plat plate position principal meridian Prob public lands quarter quarter-section corners ratio river screws section corners section lines side sight solar compass Solution.-Let stake Stat station stream subdivision SUGGESTIONS.-Let surveyor surveyor-general tangent telescope tion township trapezium trapezoid triangle true line vernier vertical Whence wires zoid
Популарни одломци
Страница 247 - ... the applicants, and they shall be at liberty to obtain the same at the most reasonable rates, and they shall also be at liberty to employ any United States Deputy Surveyor to make the survey.
Страница 246 - But their right of possession to such outside parts of such veins or ledges shall be confined to such portions thereof as lie between vertical planes drawn downward as above described, through the end lines of their locations, so continued in their own direction that such planes will intersect such exterior parts of such veins or ledges.
Страница 248 - States surveyor-general that five hundred dollars' worth of labor has been expended or improvements made upon the claim by himself or grantors ; that the plat is correct, with such further description by such reference to natural objects or permanent monuments as shall identify the claim, and furnish an accurate description, to be incorporated in the patent. At the expiration of the sixty days of publication the claimant shall file his affidavit, showing that the plat and notice have been posted...
Страница 245 - A mining claim located after the tenth day of May, eighteen hundred and seventy-two, whether located by one or more persons, may equal, but shall not exceed, one thousand five hundred feet in length along the vein or lode, but no location of a mining claim shall be made until the discovery of the vein or lode within the limits of the claim located.
Страница 325 - All records of mining claims hereafter made shall contain the name or names of the locators, the date of the location, and such a description of the claim or claims located by reference to some natural object or permanent monument as will identify the claim.
Страница 245 - That mining claims upon veins or lodes of quartz or other rock in place bearing gold, silver, cinnabar, lead, tin, copper or other valuable deposits...
Страница 251 - Survey, and the classification of the public lands and examination of the Geological Structure, mineral resources and products of the national domain...
Страница 240 - ... the excess or deficiency shall be specially noted, and added to or deducted from the western and northern ranges of sections or half sections in such township, according as the error may be in running the lines from east to west, or from south to north...
Страница 228 - Island, and Providence Plantations, Connecticut, New York, New Jersey, Pennsylvania, Delaware, Maryland, Virginia, North Carolina, South Carolina, and Georgia, to be free, sovereign and independent States; that he treats with them as such, and for himself, his heirs and successors, relinquishes all claims to the Government, propriety and territorial rights of the same, and every part thereof.
Страница 246 - States governing their possessory title, shall have the exclusive right of possession and enjoyment of all the surface included within the lines of their locations, and of all veins, lodes, and ledges throughout their entire depth, the top or apex of which lies inside of such surface lines extended downward vertically, although such veins, lodes, or ledges may so far depart from a perpendicular in their course downward as to extend outside the vertical side lines of such surface locations.