. A regional geography of the world, with diagrams and entirely new maps . on the higher western margins thanon the lower eastern parts of both Ireland and GreatBritain. The east receives a smaller rainfall than thewest, not because the greater part of the rain hasfallen in the higher west, but simply because the windsare not forced to ascend any greater elevations thanthose of the comparatively low chalk ridges of south-eastern England, or, in the case of the Highlands ofScotland, where the Eastern Grampians are as highas the Western Grampians, the plateau-like configura-tion of the whole giv
. A regional geography of the world, with diagrams and entirely new maps . on the higher western margins thanon the lower eastern parts of both Ireland and GreatBritain. The east receives a smaller rainfall than thewest, not because the greater part of the rain hasfallen in the higher west, but simply because the windsare not forced to ascend any greater elevations thanthose of the comparatively low chalk ridges of south-eastern England, or, in the case of the Highlands ofScotland, where the Eastern Grampians are as highas the Western Grampians, the plateau-like configura-tion of the whole gives no further marked ascent as thewind proceeds eastwards. The frequency of eastward-moving cyclones has already been commented would bring rain without the aid of relief, sincein a cyclonic system the spiral inward movement of airforces air to ascend and therefore to become cold andless capable of holding water vapour. Therefore, whenthese cyclones cross the western mountains of Britainthere are two factors at work in causing the forced 6o THE BRITISH ISLES. Vie. 22.—The Distribution of RainGill maikccl on a man showingthe land over 600 feet above sea-lcvcl. GENERAL PHYSICAL CONDITIONS 6i ascent of moist air, but in the eastern lowlands most ofthe rain which falls must be of simple cyclonic type. Tlants and Animals of Britainstatistics. Cieneral distribution of the surface of the British Isles in 1915 (woodsand plantations in 1913):— TotalDivisions. Surface(I coo acres). Woods andPlantalions(1000 acres). Mountain and Heath Grazing Land (1000 acres). Permanent Pasture(loooacres)- Arable Land (locoacres). Bngland Wales Scotland Ireland . Isle of Man . Channel Isles . 32,388 4,75019,070 20,248 141 44 1,697187852 1296^ I4 •2 2,4591,306 9,134 No figures262 14,0382,049 1,4919,721 19 lO; io,.273 693 . 3,290 4,999 71 21 Totals 76,641 3,033-6 12,927 27,328 19,347 Long ago the British Isles were clothed with forestswhich were mainly of the deciduous or broad-leavedkind.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectgeography, bookyear19
