. An encyclopædia of agriculture : comprising the theory and practice of the valuation, transfer, laying out, improvement, and management of landed property, and of the cultivation and economy of the animal and vegetable productions of agriculture. or 4^ per cent, for the rate of interest required. 3346. The valuation of mines and minerals is not a matter of much difficulty, when itextends merely to quarries of stone, lime, chalk, gravel, or other bodies open to the day,or worked from the surface. If the quantity is indefinite, then the annual incomeafforded forms the ground-work ; if it is li
. An encyclopædia of agriculture : comprising the theory and practice of the valuation, transfer, laying out, improvement, and management of landed property, and of the cultivation and economy of the animal and vegetable productions of agriculture. or 4^ per cent, for the rate of interest required. 3346. The valuation of mines and minerals is not a matter of much difficulty, when itextends merely to quarries of stone, lime, chalk, gravel, or other bodies open to the day,or worked from the surface. If the quantity is indefinite, then the annual incomeafforded forms the ground-work ; if it is limited, then the joint consideration of the quan -tity, and the probable time the current demand may take to exhaust it. The valuationof metallic mines belongs to a distinct class of professors known as mineral surveyors, andis a matter foreign from agriculture, which confines itself to the earths surface, or atleast to the epidermis of its upper crust. Subsect. 6. Professional Routbw of Land Sxirveyors, Appraisers and Valuators, in making up their Plans and Reports. 3347. For portraying rural objects various modes havo been adopted by land surveyors :trees are sometimes shown by small crosses or ciphers, triangles or dots (fig. 524. a); by. an orbicular line representing the extension of the branches or head, and a dot in theplace of the trunk (6 and d) ; by the same, with the addition of a shadow, taken when thesun is south or south-west, and his elevation exactly 45°, by which the points of the com-pass are readily ascertained throughout the plan, and the shape of the head, and the heightof the tree, exhibited (e, ; sometimes an elevation or profile of the tree is given, either infoliage (/), or to show the form of the trunk and branches (g), or merely to give a rudeidea of a tree (c). Hedgerows, whether with or without trees, are either shown inelevation or profile (h), or in vertical profile or birdseye view (j . They may bedelineated either in skeleton or foliage. Buildi
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Keywords: ., bookcentury1800, bookdecade1870, bookpublisherlondo, bookyear1871
