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Show 2 without regard for the danger of avalanches, and sometimes the occurrence of an avalanche causes a lengthy delay in the construction, destruction of buildings in the cities and towns, and stopping of traffic on the roads. From another viewpoint, even after the danger of avalanches has been correctly evaluated, it is often necessary to build large- scale mining operations in areas of known danger from avalanches, because the mineral beds are located there. An analogy is observed in the construction of mountain roads, which unavoidably cross avalanche areas. In the U. S. S. R. the regions subject to dangerous avalanches are the mountainous Artie regions, the Polar and northern Urals, northwest Siberia, Chukotka, Kamchatka, Sakhalin, and also the entire Southern belt of mountains ( Carpathians, Caucasian, the mountains of central Asia, Altai, Sayani, northern- Baikal uplands, Sikhote- Alin1). The broad development of natural resources in mountain areas is impossible without the development of measure of defence from avalanches. Because of this, we recommend this book to the Soviet reader. The directions which the Forest Service of the U. S. A. has compiled on the study of avalanches and defence against them are of interest to those carrying out investigative work in the mountain areas of the U. S. S. R. with the goal of economic development of these areas, and to a broader section of readers ( mountain- climbers, tourists, skiers, students of local lore). There is much useful advice in it concerning the prevention of disasters due to avalanches. The settlement of the then unpopulated mountainous areas of the U. S. A. brought man face to face with a dreaded phenomenon of nature-- an avalanche disaster. The danger of catastrophe from avalanches gradually increased as a consequence of the concentration of population in mountain areas. In connection |
