The Surveyor, Volumes 21-221908 - Surveying |
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Page 5
... angles subtended at different distances by a pole 10 feet in length . June edition . Surveys for the location of artesian bore sites and distributing drains , by Mr. W. Wade . July edition . issue . Tables of convergence of meridian for ...
... angles subtended at different distances by a pole 10 feet in length . June edition . Surveys for the location of artesian bore sites and distributing drains , by Mr. W. Wade . July edition . issue . Tables of convergence of meridian for ...
Page 6
... angles and distances , and it must be conceded that a knowledge of our forests , both as evidences of the productiveness of the soil and the value of the land for various purposes , is a very necessary part of his mental equipment . In ...
... angles and distances , and it must be conceded that a knowledge of our forests , both as evidences of the productiveness of the soil and the value of the land for various purposes , is a very necessary part of his mental equipment . In ...
Page 20
... angles of elevation and depression when slopes are in that neighbourhood . ( 8 ) Rate of Progress . - We were much handicapped for the want of an extra man . Our best day's work was on 10th September , when 20,500 links were recorded ...
... angles of elevation and depression when slopes are in that neighbourhood . ( 8 ) Rate of Progress . - We were much handicapped for the want of an extra man . Our best day's work was on 10th September , when 20,500 links were recorded ...
Page 23
... angles to the line of base and about 15 or 20 links distant , being placed so that the mark on post and the zero on scale of marking tripod are both visible . Set on post mark and range in a needle against the scale , and book the ...
... angles to the line of base and about 15 or 20 links distant , being placed so that the mark on post and the zero on scale of marking tripod are both visible . Set on post mark and range in a needle against the scale , and book the ...
Page 24
... angles of elevation and depression are required at base extremities to the connecting trig . stations . 7. Before starting operations a ground standard should be laid do in camp , under conditions similar as regards tension and ...
... angles of elevation and depression are required at base extremities to the connecting trig . stations . 7. Before starting operations a ground standard should be laid do in camp , under conditions similar as regards tension and ...
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Common terms and phrases
A. F. HALL acres angle application Australia Board Business Manager Cardew centre chains Chief Surveyor CHIG Closer Settlement correspondence cube cubic parabola curve diagram distance district DOBBIE DUMPY LEVELS Elizabeth Street Engineering error examination F. A. RIDLEY F. L. ALEXANDER feet forest formula FRANK CHAPMAN G. L. Wilkins geological grade H. F. HALLORAN Hunter Streets inches Inst Institution of Surveyors interest invar J. A. Harrison J. F. Campbell Journal Kennedy land length marks means measures Messrs method miles N. S. Wales NOTES observations obtained Office paper practical President Queensland R. H. CAMBAGE radius rails railway road rocks Royal Society's House ruling grade Scientific Secretary SITY soil South Wales standard station surface survey Surveyor-General Sydney tape theodolite THOS timber tion traverse triangle Twynam UNIV UNIV Victoria Wales INCORPORATED wire Zealand
Popular passages
Page 115 - If the square described upon one of the sides of a triangle, be equal to the squares described upon the other two sides of it ; the angle contained by these two sides is a right angle.
Page 208 - In obtuse-angled triangles, if a perpendicular be drawn from either of the acute angles to the opposite side produced, the square on the side subtending the obtuse angle is greater than the squares on the sides containing the obtuse angle, by twice the rectangle contained by the side...
Page 124 - FIFTH, by the Grace of God, of the United Kingdom of Great Britain and Ireland and of the British Dominions beyond the Seas King, Defender of the Faith, to all to whom these Presents shall come, GREETING ! Whereas...
Page 124 - Alt superanuated with Power to the said Charles Grimes to do execute and perform by himself or his sufficient Deputy or Deputies all things whatsoever belonging to the said Office. To have hold exercise and enjoy the said Office during Our Pleasure together with all Salaries Fees Perquisites Profits and advantages thereunto or of Right belonging or appertaining.
Page 208 - ... the square on the side opposite the obtuse angle is greater than the sum of the squares on the other...
Page 274 - ... —viz. the restriction in area which any man may hold. This subject has been forced upon the attention of the Legislature by defects in former systems under which one individual with means at his command could appropriate large areas, to the exclusion of his less wealthy fellow-settler.
Page 223 - ... leveling. Of these bench marks, the thirteen in the five groups at Fort Point, Sausalito, Fort Mason, Union Iron Works, and Magdalen Asylum showed an average apparent rise at the time of the earthquake of 35 millimeters (1.4 inches) as determined by Coast and Geodetic Survey leveling. As the leveling simply gives relative elevations the question arises: Does this quantity represent an average rise of the thirteen bench marks, or does it represent a settlement of the zero of the tide gauge and...
Page 26 - ... is. Take a narrow strip of paper, an inch broad or more, and 83 feet 4 inches in length, and stretch it along the wall of a large hall, or round the walls of an apartment somewhat over 20 feet square. Recall to memory the days of your boyhood, so as to get some adequate conception of what a period of a hundred years is. Then mark off from one of the ends of the strip -fa of an inch. The -fa of the inch will then represent one hundred years, and the entire length of the strip a million of years....
Page 116 - AB be divided into two equal parts in the point c, and into two unequal parts at the point D ; the rectangle AD, DB, together with the square of CD, is equal .to the square of CB.
Page 274 - Robinson, stated that he was the first to direct attention to those changes of level which depended on the season of the year. This he was led to observe from the fact that the entire mass of rock and hill on which the Armagh Observatory was erected was found to be slightly, but to an astronomer quite perceptibly, tilted or canted at one season to the east, at another, to the west. This he had at first attributed to the varying power of the sun's radiation to heat and expand the rock throughout the...