The gentleman's steward and tenants of manors instructed. Containing rational, easy, and familiar rules and tables for finding the value of estates of freehold, copyhold, or leasehold, as well on lives as for years absolute, &c. With an enquiry into the nature of the annual disbursements, precariousness of the tenure, and casualties, that estates are charged with, and how they are to be accounted for in the valuation. The tables being founded on Dr. Halley's hypothesis, and calculated by the method laid down by Abr. de Moivre / To which is added an appendix, containing the description and use of an instrument for discovering the number of feet contained in any timber-trees, by inspection only.

  • Richards, John, land surveyor.
Date:
1730
Catalogue details

Licence: Public Domain Mark

Credit: The gentleman's steward and tenants of manors instructed. Containing rational, easy, and familiar rules and tables for finding the value of estates of freehold, copyhold, or leasehold, as well on lives as for years absolute, &c. With an enquiry into the nature of the annual disbursements, precariousness of the tenure, and casualties, that estates are charged with, and how they are to be accounted for in the valuation. The tables being founded on Dr. Halley's hypothesis, and calculated by the method laid down by Abr. de Moivre / To which is added an appendix, containing the description and use of an instrument for discovering the number of feet contained in any timber-trees, by inspection only. Source: Wellcome Collection.

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    [ 12? ] To one End of this Rule mufl: be fitted an Eye-vane, in all refpects like that for the Quadrant, fave that the Jaw for putting it on may be different; and for the other End luuft be a Piece fitted to Hand crofs the Rule upon its Edge, and at right Angles with the jflat Side of it. This Piece may be about one Inch fquare, and four Inches long j and along the middle of the upper Side thereof mull be a Grove work'd Dove-tail ways, for the End of a Vane to Hide in, and to Hand Ready when fix'd. To this Grove muft be fitted two Vanes, which are to be moved at a greater or Icfs Diflance ; each Vane turning crooked at the top, for the convenient ftrain- ing of a Thread in; which two Threads mufl- always ftand upright, and parallel to one another. The Form of the Grove-piece, fee* in F/g. 4. and of the Vanes, Fig. 5. One of thefe Vanes may be fix'd, but the other mufl be moveable. The Edges of the grov'd Piece are graduated and num.ber'd from the fix’d Vane with 10, 20, 30,65V. TheUfe of which Divifion is for fixing the moveable Vane tq the Diftance of the Objed from the Eye at the time of Obfervation. it would be lofing time, to fhew the man¬ ner of cooftruding thefe Lines on the Hi¬ ding Rule and Grove-piece ; for thofe who would underftand fuch a Conftrudion, will comprehend it without any Diredions; and to thofe who do not underRand it, it will be of no Ufe at all: 1 fhall therefore only give the follow-