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 & CorJ. Knapton, 1716 - 375 σελίδες |
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Σελίδα 14
... whose fides fhou'd be equal to the given Line A : Firft , make the Line BC , equal to the Line A , and on the end thereof at C , erect the Perpen- dicular CD alfo equal to the Line A , then with the fame diftance , fet one foot in B ...
... whose fides fhou'd be equal to the given Line A : Firft , make the Line BC , equal to the Line A , and on the end thereof at C , erect the Perpen- dicular CD alfo equal to the Line A , then with the fame diftance , fet one foot in B ...
Σελίδα 53
... other remote Object . Fig . 6 Suppofe CA to be the fide of a Fort or Bulwark 22. 5 Foot high , and be- ing upon the Platform at C , you fee a D 3 Tiee , Tree , or other Object at B , whose distance The Young Surveyor's Guide . 53.
... other remote Object . Fig . 6 Suppofe CA to be the fide of a Fort or Bulwark 22. 5 Foot high , and be- ing upon the Platform at C , you fee a D 3 Tiee , Tree , or other Object at B , whose distance The Young Surveyor's Guide . 53.
Σελίδα 54
... whose distance you would know from the Foot of the Wall at A. The Lines AB and ACbeing drawn , and the he gth of the Wall 22. 5 Foot , fet from A to C , where by your Inftrument directed to B , you find the Degrees cut to be 7′1 ° . 25 ...
... whose distance you would know from the Foot of the Wall at A. The Lines AB and ACbeing drawn , and the he gth of the Wall 22. 5 Foot , fet from A to C , where by your Inftrument directed to B , you find the Degrees cut to be 7′1 ° . 25 ...
Σελίδα 188
... whose superficial Content shall be 1oc Acres ? Add five Cyphers to the 100 , and it makes 100 00000 Links , which multiply by 14 it makes 1400OO COO ; which divide by 11 , gives for the Quotient 12727272 ; the Root of which is 35 Chains ...
... whose superficial Content shall be 1oc Acres ? Add five Cyphers to the 100 , and it makes 100 00000 Links , which multiply by 14 it makes 1400OO COO ; which divide by 11 , gives for the Quotient 12727272 ; the Root of which is 35 Chains ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
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
Δημοφιλή αποσπάσματα
Σελίδα 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.
Σελίδα 30 - Degrees, each degree into 60 parts called Minutes, and each minute into 60 parts called Seconds.
Σελίδα 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...
Σελίδα 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.
Σελίδα 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.
Σελίδα 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.
Σελίδα 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.
Σελίδα 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...
Σελίδα 186 - Cyphers ; that Number thus increafed divide by the given Side, the Quotient will be the other Side. EXAMPLE. It is required...
Σελίδα 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.