The Theory and Practice of Surveying: Containing All the Instructions Requisite for the Skilful Practice of this Art |
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Results 6-10 of 54
Page 36
... contain the divisor without some remainder , increase the index by such a number , as will make it exactly divisi- ble by the index , carrying the units borrowed as so many tens to the left hand place of the decimal , and then divide as ...
... contain the divisor without some remainder , increase the index by such a number , as will make it exactly divisi- ble by the index , carrying the units borrowed as so many tens to the left hand place of the decimal , and then divide as ...
Page 40
... contained between two ra- dii and an arc : thus the space contained between the two radii CH , CB , and the arc HB is a sec- tor . fig . 8 . 20. The right sine of an arc , is a perpendicular line let fall from one end thereof , to a ...
... contained between two ra- dii and an arc : thus the space contained between the two radii CH , CB , and the arc HB is a sec- tor . fig . 8 . 20. The right sine of an arc , is a perpendicular line let fall from one end thereof , to a ...
Page 42
... contained between two - ra- dii and an arc : thus the space contained between the two radii CH , CB , and the arc HB is a sec- tor . fig . 8 . 20. The right sine of an arc , is a perpendicular line let fall from one end thereof , to a ...
... contained between two - ra- dii and an arc : thus the space contained between the two radii CH , CB , and the arc HB is a sec- tor . fig . 8 . 20. The right sine of an arc , is a perpendicular line let fall from one end thereof , to a ...
Page 50
... contained between the two sides in the one , equal to D in the other ; then the remaining angles of the one , will be severally equal to those of the other , viz . B - E and CF : and the base of the one BC , will be equal to EF , that ...
... contained between the two sides in the one , equal to D in the other ; then the remaining angles of the one , will be severally equal to those of the other , viz . B - E and CF : and the base of the one BC , will be equal to EF , that ...
Page 58
... contained twice in AB , and three times in BD , the parts 4g , gB , Bh , hi , and i D being all equal , and let the lines gC , hC , and i C , be drawn : then ( by cor . to theo . 13. ) all the small triangles AgC , gCB , BCh , & c ...
... contained twice in AB , and three times in BD , the parts 4g , gB , Bh , hi , and i D being all equal , and let the lines gC , hC , and i C , be drawn : then ( by cor . to theo . 13. ) all the small triangles AgC , gCB , BCh , & c ...
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Common terms and phrases
acres altitude Answer arch azimuth base bearing blank line centre chains and links chord circle circumferentor Co-sec Co-tang column compasses contained decimal difference distance line divided divisions draw east Ecliptic edge feet field-book figures fore four-pole chains geom given number half the sum Horizon glass hypothenuse inches instrument Lat Dep Lat latitude length logarithm measure meridian distance multiplied natural co-sine natural sine needle Nonius number of degrees object observed off-sets opposite parallel parallelogram pegs perches perpendicular plane pole pole star Portmarnock PROB protractor Quadrant quotient radius right angles right line scale of equal SCHOLIUM screw Secant sect Sextant side sights square station stationary distance subtract Sun's survey taken Tang tangent theo theodolite trapezium triangle ABC trigonometry two-pole chains vane versed sine vulgar fraction whence
Popular passages
Page 38 - The angle in a semicircle is a right angle ; the angle in a segment greater than a semicircle is less than a right angle ; and the angle in a segment less than a semicircle is greater than a right angle.
Page 25 - 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 197 - RULE. From half the sum of the three sides subtract each side severally.
Page 106 - C' (89) (90) (91) (92) (93) 112. In any plane triangle, the sum of any two sides is to their difference as the tangent of half the sum of the opposite angles is to the tangent of half their difference.
Page 27 - The VERSED SINE of an arc is that part of the diameter which is between the sine and the arc. Thus BA is the versed sine of the arc AG.