Chambers's encyclopaedia; a dictionary of universal knowledge for the people . r hand, no vertical angles or side-views,appear. In sketching or drawing a locality for military or eco-nomical puri)Oses, this kind of perspective is always used. Thegreat difficulty is to represent at the same time the relative heightsof mountains and steepness of acclivities. But the more usualkind of birds-eye views differ from common perspective only inthe horizontal line being placed considerably above the the 16th c, the only kind of views known were of the natureof ground-plans, and the artists of
Chambers's encyclopaedia; a dictionary of universal knowledge for the people . r hand, no vertical angles or side-views,appear. In sketching or drawing a locality for military or eco-nomical puri)Oses, this kind of perspective is always used. Thegreat difficulty is to represent at the same time the relative heightsof mountains and steepness of acclivities. But the more usualkind of birds-eye views differ from common perspective only inthe horizontal line being placed considerably above the the 16th c, the only kind of views known were of the natureof ground-plans, and the artists of the 17tli c. tried to combinethis method with side views. BIRDS FOOT (Ornithopus), a genus of plants of the naturalorder Leguminosce, sub-oider Painiionacea, deriving both its popu-lar and botanical name from the resemblance of tiie curved jiodsto birds claws; the leaves are pinnate, with a terminal Species {0. perpiisillus) is a native of Britain, growing ondry, sandy, or gravelly soils—a small plant of little importance. BIRDS FOOT TREFOIL—BIRKENHEAD. 677. Birds Foot Trefoil {Lotus comiculaluB).<J, a stem witli li;aves, llowerH, ami pods; b. calyx; c,Btaudurd of llovver; d, keel of llower; e, style; fg,stamens. the flowers of which are white, striated with red. But 0. sativus,an annual gro\vin<j; to the heijjht of two or three feet, a native ofPortugal, is ciiltivatel in that country as rrreen food for cattle,and is very .succulent and nutritious. Like its British congener, itgrows well on very poor soils. Its Portuguese name isSerradilla. BIRDS FOOT TKEFOIL {Lotus), a genus of plants of thenatural onler Le^, sub-order Papilionacem. The iiods arccylindrical, somewhat spongy within and imperfectly divided into many cells. The nameB. F. T. is derived fromthe resemblance of theclusters of pods to abirds foot. It has re-ceived the name Lotusfrom botanists, becausea S|iccies of this genusis snpposed to havebiMMi one of the plantsso named by the Gree
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Keywords: ., bookcentury1800, bookdecade1880, bookidchamberssenc, bookyear1888
