A Rudimentary Treatise on Land and Engineering Surveying, with all the modern improvements ... With illustrationsVirtue brothers & Company, 1865 - 232 pages |
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Page 29
... portion of the figure is not included by an even number of offsets , its area must be found separately and added to the area found by the Rule . EXAMPLES . 1. Required the plan and area of a piece of land measured by equidistant offsets ...
... portion of the figure is not included by an even number of offsets , its area must be found separately and added to the area found by the Rule . EXAMPLES . 1. Required the plan and area of a piece of land measured by equidistant offsets ...
Page 33
... portions Bn , mn of the chain being pulled tight ; then shall Bn be perpen- a 13 B dicular to the chain - line a B , and may be extended to any length required . This method of erecting a perpendicular , though not so ex- peditious as ...
... portions Bn , mn of the chain being pulled tight ; then shall Bn be perpen- a 13 B dicular to the chain - line a B , and may be extended to any length required . This method of erecting a perpendicular , though not so ex- peditious as ...
Page 44
... portions m B , Cn need be examined . NOTE . It may here be proper to add that , if a straight fence had passed at or near the stations m and n , excluding the portion of the field towards B and C , these stations would have determined ...
... portions m B , Cn need be examined . NOTE . It may here be proper to add that , if a straight fence had passed at or near the stations m and n , excluding the portion of the field towards B and C , these stations would have determined ...
Page 49
... portion of a wood , ( the coppice being cut down , and the large timber still standing ) ; in such cases , the lines must be taken within the space to be surveyed , as the adjoining uncut coppice prevents their being taken outside . The ...
... portion of a wood , ( the coppice being cut down , and the large timber still standing ) ; in such cases , the lines must be taken within the space to be surveyed , as the adjoining uncut coppice prevents their being taken outside . The ...
Page 65
... portions AD , A E of the longer bars , form with them an accurate parallelogram ADFE , in every position of the instrument . Several ivory castors support the machine parallel to the paper , and allow it to move freely over it in all ...
... portions AD , A E of the longer bars , form with them an accurate parallelogram ADFE , in every position of the instrument . Several ivory castors support the machine parallel to the paper , and allow it to move freely over it in all ...
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Common terms and phrases
ABCD accuracy acres adjustment arches axis beam compasses breadth bubble centre chains common correct cross sections cubic yards cutting datum line depth direction distance divided draw embankments equal error EXAMPLE feet field book figure finding the contents fore sights formation level formula Gentleman's Diary given gradient ground height horizontal inches instrument intersection laid Lay the ruler length level book main line mark measured mile move it parallel NOTE object offsets parallax parallel ruler perpendicular position Prob protractor quality lines quantity of land radii radius railway curves Rankine's method ratio right angles river river Ouse road scale screw serpentine curve shewn shews side sine slopes spirit level square links staff stations straight fence surface survey surveyors taken taking tangent telescope theodolite tion Tithe Commissioners trapezium triangle tube tunnel vernier vernier scale vertical viaduct whence
Popular passages
Page 3 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; and each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds ; and these into thirds, &c.
Page 123 - An Act for consolidating in one Act certain provisions usually inserted in Acts of inclosure, and for facilitating the mode of proving the several facts usually required on the passing of such Acts...
Page 240 - Gd. 108*. METROPOLIS LOCAL MANAGEMENT AMENDMENT ACT, 1862 ; with Notes and Index. Is. 109. NUISANCES REMOVAL AND DISEASE PREVENTION ACT. Is. 110. RECENT LEGISLATIVE ACTS applying to Contractors, Merchants, and Tradesmen. Is.
Page 8 - Similar triangles are to one another in the duplicate ratio of their homologous sides.