A Treatise on Practical Surveying: Which is Demonstrated from Its First Principles : Wherein Every Thing that is Useful and Curious in that Art, is Fully Considered and ExplainedF. Lucas, jun. and Cushing & Jewett, J. Robinson printer, 1822 - 326 páginas |
Dentro del libro
Resultados 1-5 de 65
Página v
... laid them under the neces- sity of inventing certain methods and measures to ena- ble them to distinguish and adjust the limits of their respective grounds , when the waters were withdrawn . And this opinion is not entirely to be ...
... laid them under the neces- sity of inventing certain methods and measures to ena- ble them to distinguish and adjust the limits of their respective grounds , when the waters were withdrawn . And this opinion is not entirely to be ...
Página vii
... the compass , by amplitudes and azimuths , with some of its uses ; to which is added , a table of the sun's declination ; how to ûnd by what scale a map is laid down , having the > map and area given ; how to find the content PREFACE . vii.
... the compass , by amplitudes and azimuths , with some of its uses ; to which is added , a table of the sun's declination ; how to ûnd by what scale a map is laid down , having the > map and area given ; how to find the content PREFACE . vii.
Página 38
... laid on the triangle DEF , so as to make the points A and B co- incide with D and E , which they will do , because AB = DE ( by the hypothesis ) ; and since the angle A = D , the line AC will fall along DF , and inasmuch as they are ...
... laid on the triangle DEF , so as to make the points A and B co- incide with D and E , which they will do , because AB = DE ( by the hypothesis ) ; and since the angle A = D , the line AC will fall along DF , and inasmuch as they are ...
Página 57
... Lay BL from B to L ; from B with the line BO , describe an arc , and from L with LO describe another arc ; from O , the interjection point of those arcs , draw BO and OL , and BOL is the triangle required . This is manifest from the ...
... Lay BL from B to L ; from B with the line BO , describe an arc , and from L with LO describe another arc ; from O , the interjection point of those arcs , draw BO and OL , and BOL is the triangle required . This is manifest from the ...
Página 58
... laid on the other , the sides will mutually agree with each other , and therefore be equal ; for if we consider these two triangles are made of the same given three fines , they are manifestly one and the same triangle . Otherwise ...
... laid on the other , the sides will mutually agree with each other , and therefore be equal ; for if we consider these two triangles are made of the same given three fines , they are manifestly one and the same triangle . Otherwise ...
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A Treatise of Practical Surveying: Which is Demonstrated From Its First ... Robert Gibson Sin vista previa disponible - 2021 |
Términos y frases comunes
20 perches ABCD acres altitude Answer base bearing blank line centre chains and links chord circle circumferentor Co-secant co-sine Co-tang column compass contained cyphers decimal decimal fraction difference Dist divided divisor draw east edge EXAMPLE feet field-book figures four-pole chains given angle half the sum height Hence hypothenuse inches instrument latitude length logarithm measure meridian distance multiplied needle number of degrees object off-sets opposite parallel parallelogram perpendicular piece of ground plane polygon Portmarnock PROB proportion protractor quotient radius right angles right line scale of equal SCHOLIUM secant second station sect semicircle side sights sine square root stationary distance stationary line sun's suppose survey taken tang tangent thence theo theodolite THEOREM thro triangle ABC trigonometry true amplitude true azimuth two-pole chains vane variation whence