Surveying improved or, the whole art, both in theory and practice, fully demonstrated. In four parts. I. Arithmetic, Vulgar and Decimal. II. All Definitions, Theorems, and Problems; with Plain Trigonometry, and whatsoever else is useful in the Theory of Surveying. III. The Description and Use of Instruments, necessary in the Practice of Surveying; particularly Gunter's Chain, the Surveying-Wheel, the Theodolite, the Sector, the Circumferentor, the Protractor, the Semicircle, and the Plain-Table; which last, of all others, is esteemed universally useful in every Part of this Art. IV. How to Measure, Cast up, Plot, and Divide Parcels of Land, of what Denomination soever, viz. Meadows, Pastures, Fields, Forests, Woods, Commons, Lordships, Manors, &c. by any one or more of the abovesaid Instruments. Also, to take inaccessible Heights and Distances, with surveying Counties, Roads, Rivers, &c. Likewise to reduce a Plan to a Prospect, and to correct any Survey by Astronomical Calculation: With Directions for making transparent Colours for Maps, &c. With an Appendix concerning Levelling and Conveying of Water to any possible Place assigned. The sixth edition, with additions, illustrated with cuts, &c. and also accurately revised, improved, and augmented. By Henry Wilson, Mathematician. To which is now added, Geodoesia accurata: or, Surveying made Easy by the Chain only. Shewing, How to Measure, Plot, Divide, and Delineate any Parcel of Land, without the Trouble and Charge of any other Instrument but the Chain; with proper Directions for Reducing, Mapping, Colouring, and finding the Content, after an accurate and expeditious Manner. Also, a new essay upon Solids. Shewing how the Dimensions of Timber-Trees, &c. both standing and lying, may be exactly taken, and readily measured various Ways, viz. Vulgarly, Decimally, Duodecimally, Instrumentally, and Tabularly. By William Hume, Philomath