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 |
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Página 10
... inch , yard , perch , & c . or of whatever the whole thing originally was . Fractions are expressed in two forms , that is , ei- ther vulgarly or decimally . All fractions whose denominators do not consist of a cypher or cyphers set ...
... inch , yard , perch , & c . or of whatever the whole thing originally was . Fractions are expressed in two forms , that is , ei- ther vulgarly or decimally . All fractions whose denominators do not consist of a cypher or cyphers set ...
Página 72
... inch be divided into any assigned number of equal parts , and if these parts be continued on in a right line , and if the last of them be subdivided into 10 equal parts , and thence if the first divisions be num- bered with 1 , 2 , 3 ...
... inch be divided into any assigned number of equal parts , and if these parts be continued on in a right line , and if the last of them be subdivided into 10 equal parts , and thence if the first divisions be num- bered with 1 , 2 , 3 ...
Página 73
... inch , and sometimes so many feet to an inch . On the contrary side there are two scales , one of 10 , and the other of 20 ; or one of 100 , and the other of 200 ; or one of 1000 , and the other of 2000 parts to an inch , diagonally ...
... inch , and sometimes so many feet to an inch . On the contrary side there are two scales , one of 10 , and the other of 20 ; or one of 100 , and the other of 200 ; or one of 1000 , and the other of 2000 parts to an inch , diagonally ...
Página 147
... inches . There are other perches used in different parts of England , as the perch of woodland measure , which is 6 yards ; that of church land - measure , which is 7 yards ( or the same with the plantation perch ) and the forest ...
... inches . There are other perches used in different parts of England , as the perch of woodland measure , which is 6 yards ; that of church land - measure , which is 7 yards ( or the same with the plantation perch ) and the forest ...
Página 148
... inches . The Scotch perch is 18 feet or 6 yards , or 6 Scots ells . In the shire of Cunningham in Scotland , their perch is 183 feet , and this perch is used in some few places in the north part of Ireland , as the statute perch is in ...
... inches . The Scotch perch is 18 feet or 6 yards , or 6 Scots ells . In the shire of Cunningham in Scotland , their perch is 183 feet , and this perch is used in some few places in the north part of Ireland , as the statute perch is in ...
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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