Practical geometry applied to the useful arts of building, surveying, gardening and mensuration ... To which is annexed, an account of the clandestine practice now generally obtaining in mensuration, and particularly the damage sustained in selling timber by measure. And set to view in four parts ... The whole exemplifi'd with above 60 folio copper plates, by the best hands / By Batty Langley.

  • Langley, Batty, 1696-1751.
Date:
1726
Catalogue details

Licence: Public Domain Mark

Credit: Practical geometry applied to the useful arts of building, surveying, gardening and mensuration ... To which is annexed, an account of the clandestine practice now generally obtaining in mensuration, and particularly the damage sustained in selling timber by measure. And set to view in four parts ... The whole exemplifi'd with above 60 folio copper plates, by the best hands / By Batty Langley. Source: Wellcome Collection.

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    Problem 8 Ta divide an Angle into two equal Tarts 9 To divide a Right Line into any Number of equali Tarts to To find a Mean Proportion between two Right I Lines given 11 To deferibe a Circle as fhaJl pafs through three given Points 12 To inferibe a Geometrical Square^ Penta¬ gon, Hexagon, Heptagon, Odtagon, Nonagon, <?»</( Decagon within a Circle „ I'i To make an Equilateral Triangle 14 To make a right lined Triangle equal to three^ given right Lines 15 To deferibe a Geometrical Square 16 To deferibe an Oblong f 17 To deferibe a Rhombus p 18 To deferibe a'^QVclQa^z^e.% ^ 19 To deferibe a p 20 To deferibe dn Ellipfis c 21 To deferibe any Ellipfis ±1 To infcribe a Circle within a Square ' r 23 To infcribe a Circle Circle, & contra 24 To infcribe d Circle within a Triangle 1' 25 To circumferibe a Q\.ic\z about I 2 6 Two Points within a Circle^/w», to deferibe an- ^ other Circle, as Jhall divide the Circumference of the given Circle into two equal Tarts 27 To make a Geometrical Square equal to any Trian¬ gle To make ^ Geometrical equal to any Paral-i kilogram 29 To divide aright Gmz in any Proportion required') 10 To divide the Circumference of any Circle intop 3 60 equal Tarts (or TTegrees) ) 31 Jb infcribe an Ellipfis within an Obl6ng zz To erebla Perpendicular, by the Help of a ten Foot, Rod Pa; ge 10 11 12 13 14 15 16 17 18 19 21 SECT. III. O^GtomQtnQdX yixioms Theorems^ from Folio rxd to Folio 'if. SECT. IV. Of the Conftruftion of Compound Geometrical FIGURES. 25 26 AXionisi, il, III. Axioms IV, V, VI, VII, VIII, IX A general Rule concerning Compound Fibres 2 7 Eight Problems to deferibe compound Figuresj from Folio z7j to 30