The Surveyor, Volumes 21-221908 - Surveying |
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Page 13
... curves . as that described by the upper margin or extent of the western White Box , would be found on investigation to correspond with temperature and perhaps rainfall curves . Probably the Upper Hunter and Goulburn Valleys afford the ...
... curves . as that described by the upper margin or extent of the western White Box , would be found on investigation to correspond with temperature and perhaps rainfall curves . Probably the Upper Hunter and Goulburn Valleys afford the ...
Page 24
... curves uniform . After each reading the tape should be relieved of tension . 2. Two thermometers are to be used , placed about 50 links insi from either end , and hung on sticks at the same altitude as the tape abo the ground . 3. The ...
... curves uniform . After each reading the tape should be relieved of tension . 2. Two thermometers are to be used , placed about 50 links insi from either end , and hung on sticks at the same altitude as the tape abo the ground . 3. The ...
Page 30
... curves are concerned . Before commencing an exploration , obtain the best and latest maps of the district through which the proposed line is wanted , and have these maps joined and mounted on linen in rolls of suitable lengths , so that ...
... curves are concerned . Before commencing an exploration , obtain the best and latest maps of the district through which the proposed line is wanted , and have these maps joined and mounted on linen in rolls of suitable lengths , so that ...
Page 31
... curves . Some years after , when the construction of the line was assured , another examination of the route was made and revealed the fact that a main water - course ran for nearly 20 miles in the direction of Condobolin ; but , in ...
... curves . Some years after , when the construction of the line was assured , another examination of the route was made and revealed the fact that a main water - course ran for nearly 20 miles in the direction of Condobolin ; but , in ...
Page 32
... curve to successfully turn on it ; but should it fork into two spurs it is usually safe to take it for granted that a turn can be made . In turning in water - courses , the same rule applies . Always look for a fork in the creek to turn ...
... curve to successfully turn on it ; but should it fork into two spurs it is usually safe to take it for granted that a turn can be made . In turning in water - courses , the same rule applies . Always look for a fork in the creek to turn ...
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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...