The Young Surveyor's Guide: Or, A New Introduction to the Whole Art of Surveying Land: Both by the Chain & All Instruments Now in Use. Now First Publish'd from an Original M.s. to which is Added, All the Useful Geometrical Definitions, Axioms, Problems & Theorems, which Relate to this Art ... There is Also Added, by Way of Appendix, a New Way of Surveying Large Tracts of Land ... The Manner of Making Up and Preparing Transparent Colours for Beautifying Maps ... The Tables of Artificial Numbers, Sines and Tangents ... All which is Very Much Improved & Cor |
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Page 10
... draw the Line AB , and it will be perpendi- cular to the given Line KN . PROBLEM . II . Fig.21 . To raife a Perpendicular DB , upon the End of the Line AB . Open your Com- paffes to any ordinary extent , and fetting . one Foot upon the ...
... draw the Line AB , and it will be perpendi- cular to the given Line KN . PROBLEM . II . Fig.21 . To raife a Perpendicular DB , upon the End of the Line AB . Open your Com- paffes to any ordinary extent , and fetting . one Foot upon the ...
Page 11
... draw the Line DKF : laftly , from the point B to the Interfection at g , draw the Line B g D , which is per- pendicular to the Line AB PROBLEM III . Fig.22.To let fall aPerpendicular AE , to the given Line . RQ from the givenPoint A ...
... draw the Line DKF : laftly , from the point B to the Interfection at g , draw the Line B g D , which is per- pendicular to the Line AB PROBLEM III . Fig.22.To let fall aPerpendicular AE , to the given Line . RQ from the givenPoint A ...
Page 12
... draw the Line FGH , and it is done . PROBLEM VI . A fecond way to draw Lines Parallel to each other . Fig . 25. Let BD he a Line given ; to make a Line Parallel unto it , fet one Foot of the Compaffes at G , and with the other defcribe ...
... draw the Line FGH , and it is done . PROBLEM VI . A fecond way to draw Lines Parallel to each other . Fig . 25. Let BD he a Line given ; to make a Line Parallel unto it , fet one Foot of the Compaffes at G , and with the other defcribe ...
Page 13
... draw the line CK , which is parallel to BD and through the point E. PROBLEM VIII . Fig . 27 To defcribe a Triangle , ACB , whofe fides , AC , CB , and AB , fhall be equal to the three fides , E , D , and F given , provided that any two ...
... draw the line CK , which is parallel to BD and through the point E. PROBLEM VIII . Fig . 27 To defcribe a Triangle , ACB , whofe fides , AC , CB , and AB , fhall be equal to the three fides , E , D , and F given , provided that any two ...
Page 14
... Line ABgiven . Defcribe from the Points A and D as Cen- ters two Arches BC , and EF , with the fame interval of the Compaffes ; then take the diftance EF , and fet it from B to C , then draw the Line AC , I fay , the Angles BAC , and ...
... Line ABgiven . Defcribe from the Points A and D as Cen- ters two Arches BC , and EF , with the fame interval of the Compaffes ; then take the diftance EF , and fet it from B to C , then draw the Line AC , I fay , the Angles BAC , and ...
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Common terms and phrases
ABCD Acres alfo Bafe Baſe becauſe beft Breadth Cafe Center Chains and Links Circle Co-fine Sine Co-Tang Co-fine Tangent Co-Tang Co-Tang Tangent Colour Compaffes contain Content defcribe the Arch Diameter direct your fights divide Divifion draw a Line draw the Line Example fame Feet fetting one foot feven feveral fhall Field Field-Book Figure fome Foot diftance ftand fuch fuppofe fure given Ground Hedge heighth Inches Index Inftrument interfect laft leffer left fide Length Line BC Line CD Mark meaſure muft multiply muſt Number obferved Off-fet oppofite Parallelogram Perches Perpendicular plain Table prick Prob Proportion protract Protractor Quotient Rhombus right Angles right fide right Line Roods Scale of equal Sine Co-fine Tangent Sine Degree Square Stationary Line take the Plot Tangent M Degree thefe THEOREM thereof theſe thofe Trapezium Triangle Trigonometry uſe Wafbed Weft whofe
Popular passages
Page 24 - All the interior angles of any rectilineal figure, together with four right angles, are equal to twice as many right angles as the figure has sides.
Page 30 - Degrees, each degree into 60 parts called Minutes, and each minute into 60 parts called Seconds.
Page 189 - But if it be large, as the Map of a County, or the like, the only way is to compafs in the Plot firft with one great Square :, and afterwards to divide that into as many little Squares as you fhall fee convenient. Alfo make the...
Page 119 - Multiply the given decimal by the number of parts in the next less denomination, and point off as many decimal places as there are in the given decimal.
Page 108 - ... Quantity , of an Angle included by thefe Lines ; for which there are almoft as many Inftruments as there are Surveyors. Such among the reft as have got the greateft Efteem in the World, are the plain Table for fmall Inclofures, the Semicircle for champaign Grounds, the Circumferentor, the Theodolite, &c.
Page 214 - ... the greatest ; the remainder will be the time of the star's coming to the meridian. If the remainder be greater than 12 hours, the star will come to the meridian after midnight ; but if less than 12 hours, before midnight.
Page 133 - The distances from A to B, from В to C, from С to D, and from D to E are 2-15, 0-74, 2-4, and 0-96 miles.
Page 109 - Table. Place the Table (already fitted for the Work, with a Sheet of Paper upon it) as nigh to the Angle A as you can, the North End of the Needle hanging directly over the Flower-de-luce.^ then make a Mark upon the Sheet of Paper at any convenient Place for the Angle A, and lay the Edge of the Index to the Mark, turning it about...
Page 186 - Cyphers ; that Number thus increafed divide by the given Side, the Quotient will be the other Side. EXAMPLE. It is required...
Page 69 - Feet high, the Number of Stones (or Cubick Feet) will be equal to the Number of Lineal Feet in the length of that Wai]. Secondly, If the Wall ihould be of the fame length and heighth one Foot as bef re, but the thicknefs 2, 3, 4' ?i &c- Feet (гфла of one Foot) ; then the Number of Stones (or Cubick Feet) will cccrdinglyhe twice,thrice,four-timesfivelimes &c.