A Treatise on Land Surveying in Theory and Practice ...1869 |
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Page iii
... ADJUSTMENT , AND USE OF THEODOLITES , LEVELS , AND OTHER INSTRUMENTS REQUIRED IN THE FIELD AND OFFICE WORK OF SURVEYING AND LEVELLING . FOR THE USE OF ENGINEERS , SURVEYORS , AND STUDENTS IN COLLEGES AND SCHOOLS . JOHN BY A. SMITH ...
... ADJUSTMENT , AND USE OF THEODOLITES , LEVELS , AND OTHER INSTRUMENTS REQUIRED IN THE FIELD AND OFFICE WORK OF SURVEYING AND LEVELLING . FOR THE USE OF ENGINEERS , SURVEYORS , AND STUDENTS IN COLLEGES AND SCHOOLS . JOHN BY A. SMITH ...
Page xix
... ADJUSTMENT OF INSTRUMENTS USED IN SURVEYING , & c . - ANGULAR INSTRUMENTS . The theodolite : construction - mechanical arrangements 266 Instrumental adjustments - examination of perfection of construction - field adjustments , & c ...
... ADJUSTMENT OF INSTRUMENTS USED IN SURVEYING , & c . - ANGULAR INSTRUMENTS . The theodolite : construction - mechanical arrangements 266 Instrumental adjustments - examination of perfection of construction - field adjustments , & c ...
Page 9
... adjusted in the vertical plane of the given line . The surveyor should then pass a few waves through the chain , with a slack hand , to free it from dirt and ringlocks , and holding the handle of the chain accurately to the end , or ...
... adjusted in the vertical plane of the given line . The surveyor should then pass a few waves through the chain , with a slack hand , to free it from dirt and ringlocks , and holding the handle of the chain accurately to the end , or ...
Page 10
... downhill work , at a point which he can hold to the horizontal , and refer that point in the hori- zontal to the inclined surface , as already described . The point on the chain should be adjusted to the correspond- 10 ON LAND SURVEYING .
... downhill work , at a point which he can hold to the horizontal , and refer that point in the hori- zontal to the inclined surface , as already described . The point on the chain should be adjusted to the correspond- 10 ON LAND SURVEYING .
Page 11
John A. Smith. point on the chain should be adjusted to the correspond- ing point on the surface , and in this position handed over to the follower . The remaining part , or parts , of the chain should be held to the horizontal , and ...
John A. Smith. point on the chain should be adjusted to the correspond- ing point on the surface , and in this position handed over to the follower . The remaining part , or parts , of the chain should be held to the horizontal , and ...
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Common terms and phrases
accuracy accurately adjacent angles adjusted already described altitude angular instrument angular point ascer atmospheric refraction axis base line bisection centre chain length chord circular curves clamped collimation computed contained angle contour points convenient correct corresponding determined diagram difference direction district equal error due extremities field field-book flag pole formula forward given ground horizontal limb inclination intermediate points known points laid lines traced lunar distance magnetic angle manner marked measured angle ment meridian observed obstruction obtained opposite sides parallel lines parallelogram parcel perpendiculars plotted point of intersection position prismatic compass protractor purpose reading reference point refraction remote point scale selected spherical spherical excess staff standard length straight line suitable surface configuration survey of detail surveyor tangent telescope temperature theodolite tion triangles trig trigonometrical survey tube verified verniers vertical angles vertical limb vertical plane wand water margins wire zero
Popular passages
Page 291 - The term, however, when used to express the fineness of gold, has a relative meaning only. Every mass of alloyed gold is supposed to be divided into 24 equal parts ; thus the standard for coin is 22 carat fine, that is, it consists of 22 parts of pure gold and 2 parts of alloy.
Page 291 - Measure 144 square inches = 1 square foot 9 square feet = 1 square yard 30J square yards = 1 square rod 160 square rods = 1 acre 640 acres = 1 square mile Cubic Measure 1728 cubic inches = 1 cubic foot 27 cubic feet = 1 cubic yard 128 cubic feet...
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Page 60 - All the interior angles of any rectilineal figure, together with four right angles, are equal to twice as many right angles as the figure has sides.
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Page 299 - The School-Books, Atlases, Maps, &c. comprised in this Catalogue may be inspected in the Educational Department of Messrs. LONGMANS and Co. 39 Paternoster How, London, where also all other works published by them may be seen.
Page 252 - ... rectilineal figures are to one another in the duplicate ratio of their homologous sides.
Page 303 - Stevens and Hole's Arithmetical Examination Cards, in Eight Sets, each Set consisting of Twenty-Four Cards. Price Is. per Set. A. Simple Addition and Subtraction. B. Simple Multiplication and Division. C. Compound Rules (Money>. D. Compound Rules (Weights and Measures). E. Practice and Bills of Parcels. F. Vulgar and Decimal Fractions. G. Simple and Compound Proportion.