The young surveyor's guide; or, A new introduction to the whole art of surveying land. both by the chain and all instruments now in use. Now first ... all the useful geometrical definitions,

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1717 edition. Excerpt: ...theScituation of the Anghs, vit. inward and outward, for fear of committing of a miftake when you protract the fame. Now if you draw a Line from G to F, you divide it into 2 Trapeziums 5 and then the Content is found as hath been before taught. How to take the Plot of a Field ty going round the fame, fFig. Let A BCD reprefent a Field to be meafured. Firft beginning at the Angle A, I meafure one Chain in Length towards B, as to a, and another towards E as to b y next, I rake the diflance from a to b 1; 50, and note it down in my Field Book, f or the Quantify of the Angle A i and nvaure the Hedge AB 00, and put it in my FuldBook. Neit I come to the A'3gle B, and meafuring one Chain to d, and another to c, I take the difiance d c with my Chain, and I find it fo be 1. 40, and the Hedge BC 3. I Next I come to the Angle C, and measuring one Chain toe, and another to t and take the diflance f e, I find irto be I. 'C» and from C to 2. 17, and fo I pro. ceed £/e» to ProtraS the former Work. Firjt, I take from my Scale 1 Chain, and having drawn a Line as AB, upon A as a Center, I ftrike the Arch a b; then take from your Scale 1. 50, and fet it from a to b, and draw the L;ne AE, fettirg thereon 2. 60 from A to E, and 3 Chains from A to B; then taking one Chain from my Scale and putting one Foot in B, I ftrike the Arch c d; next 1 take 1 Chain 40 L:nks, the Quantity of the Angle B, and fet it from d to c, and draw the Line BC, making it to be in Length 3. 15. Next I coins to the Angle C, and fetting one Foot in C, with the other I defcribe the Arch ef, then taking 1. 10, from your Scale, I fet it from e to and through the point f, I draw the Line CD in Length 2.17. Next I come to the Ag'e D, and always taking 1 Chain from my Scale, I put one...