Instructions in Practical Surveying, Topographical Plan Drawing and Sketching Ground Without Instruments |
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Page ix
... measurements , we have not begun with them , but beg leave to recommend the student to a perusal of the elaborate and highly interesting works , both English and foreign , upon that subject . Our object being to take up the business ...
... measurements , we have not begun with them , but beg leave to recommend the student to a perusal of the elaborate and highly interesting works , both English and foreign , upon that subject . Our object being to take up the business ...
Page 15
... measured over a series of very uneven ground . In surveys of large extent , instruments of a more complicated construc- tion and larger size are made use of for obtaining the greater triangles , in which corrections are necessary ...
... measured over a series of very uneven ground . In surveys of large extent , instruments of a more complicated construc- tion and larger size are made use of for obtaining the greater triangles , in which corrections are necessary ...
Page 14
... measured over a series of very uneven ground . In surveys of large extent , instruments of a more complicated construc- tion and larger size are made use of for obtaining the greater triangles , in which corrections are necessary ...
... measured over a series of very uneven ground . In surveys of large extent , instruments of a more complicated construc- tion and larger size are made use of for obtaining the greater triangles , in which corrections are necessary ...
Page 18
... measured on the ground , a similar figure may be projected upon paper , and by any scale that may be required . The ... measured connecting two of any three objects , and the angles contained between these two lines , or between each of ...
... measured on the ground , a similar figure may be projected upon paper , and by any scale that may be required . The ... measured connecting two of any three objects , and the angles contained between these two lines , or between each of ...
Page 19
... measured through a road , by the margin of a river , or any boundary whatever , are all that is commonly necessary for laying down a plan of the same ; but if its irregularity is such that it does not coincide with the straight lines ...
... measured through a road , by the margin of a river , or any boundary whatever , are all that is commonly necessary for laying down a plan of the same ; but if its irregularity is such that it does not coincide with the straight lines ...
Common terms and phrases
accuracy adjusted altitude angular apparent level ascertained azimuth beam compasses bearing and distance centre chain compass correct degree determine difference of level distant object divided division drawing drawn elevation employed error exactly Fcap feet field-book figure geodesic ground height hence hills History horizontal inches Indian ink intersections irregular JOHN WILSON CROKER laid latitude length light limb LORD means measured meridian method miles military sketches nearly necessary needle observed obtained offsets pacing paper parallax parallel parallel ruler pencil perpendicular persons plane table plane-table Plates plot points polar distance Portrait Post 8vo practice principle protractor reflecting instrument right angles roads ruler scale screws Second Edition semicircle sextant shade sides slopes Specimen spherical spherical excess square miles station subtracted supposed surveying taken tangent telescope theodolite Third Edition tion triangles vernier vernier scale vertical Vols Woodcuts
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