him. Not that a hint of his thoughts showed on his face when he walked into The Rainier Room, one of the smaller meeting rooms. Half a dozen worried-looking executives were settling
Interesting confirmation of Brückner's 35-year period has been found by E. Richter in the variations of the Swiss glaciers, but as these glaciers differ in length, they do not all advance and retreat at the same time. The advance is seen during the cold and damp periods. Brückner has found certain districts in which the phases and epochs of the climatic cycle are exactly reversed. These exceptional districts are almost altogether limited to marine climates. There is thus a sort of compensation between oceans and continents. The rainier periods on the continents are accompanied by relatively low pressures, while the pressures are high and the period dry over the oceans and vice versa. The cold and rainy periods are also marked by a decrease in all pressure differences. It is obvious that changes in the general distribution of atmospheric pressures, over extended areas, are closely associated with fluctuations in temperature and rainfall. These changes in pressure distribution must in some way be associated with changes in the general circulation of the atmosphere, and these again must depend upon some external controlling cause or causes. W. J. S. Lockyer has called attention to the fact that there seems to be a periodicity of about 35 years in solar activity, and that this corresponds with the Brückner period. Entry: W
CASCADE MOUNTAINS, a continuation northward of the Sierra Nevada, some 500 m. across the states of Oregon and Washington, U.S.A., into British Columbia. In American territory the range lies from 100 to 150 m. from the coast. The Cascades are separated on the S. from the Sierras by deep valleys near Mt. Shasta in California, while on the N., somewhat below the international boundary of 49° N., they approach the northern Rockies, mingling with these in inextricable confusion, although their name is given also to the much-broken, river-dissected, central mountain plateau that crosses British Columbia from S.E. to N.W. Geologically the Sierras and Cascades are very different, though their exact relations are not yet clearly determined; topographically they are also different. The Cascades are in general a comparatively low, broad mass surmounted by a number of imposing peaks in Oregon and Washington. Especially north of the Columbia river, the range widens out into a plateau. There are no notable elevations in British Columbia. Evidences of volcanic activity in comparatively recent geologic time are abundant throughout the length of the range, and all the highest summits are volcanic cones, covered with snow fields and, in a number of instances, with glaciers. The grandest peaks are Shasta (14,380 ft.) at the southern end, and Rainier (or Tacoma, 14,363 ft.) in Washington, two of the most magnificent mountains of America. Other notable summits are Mt. Pitt (9760), Mt. Scott (9122), Diamond Peak (8807), Mt. Thielsen (9250), Mt. Jefferson (10,200) and Mt. Hood (11,225), in Oregon; and Stuart (9470), St Helens (10,000), Baker (10,827) and Adams (12,470), in Washington. The Fraser river in the far north, the Columbia at the middle, and the Klamath in the south cut athwart the range to the Pacific, and many minor streams descend the range to swell their waters, while some drain directly from the flanks of the mountains into Puget Sound and Gray's Harbor. The Columbia has cut almost to the sea-level through the great mountain mass, the Dalles being only about 100 ft. above the sea. It is to the Cascades of the tremendous rapids at this point that the mountains owe their name. The slopes of the Cascades, particularly on the west, which has a very much moister climate than the eastern slope, are clothed with magnificent forests, chiefly of coniferous evergreens: firs, pine, tamarack and cedar. The Douglas fir, the "Oregon pine" of commerce, often attaining a height of 250 ft., is one of the most beautiful trees in the world. There are also a variety of deciduous trees, but in the aggregate they are unimportant. In 1910 the mountain forests were largely included in ten national forest reserves, with a total area of nearly 16,000,000 acres, extending from the northern boundary of Washington to the southern boundary of Oregon. The magnificent forest cloak, splendid peaks, great open mountain plateau pastures, and exquisite lakes embosomed in mountain fastnesses and forest gloom, give variety to the scenery, which is often grand, and throughout the range indescribably beautiful, though perhaps not equal to the Sierra Nevada in splended light and colour. Large game--deer, bears, mountain sheep and goats, wolves and panthers--still abound. Two great railway systems, the Great Northern and the Northern Pacific, cross the Cascades through noteworthy tunnels; that on the former line is 2½ m. long, that on the latter a little less than 2 m. Entry: CASCADE
_Climate._--From the elevation which it attains in its northern division the county is colder and is rainier than other midland counties. Even in summer cold and thick fogs are often seen hanging over the rivers, and clinging to the lower parts of the hills, and hoar-frosts are by no means unknown even in June and July. The winters in the uplands are generally severe, and the rainfall heavy. At Buxton, at an elevation of about 1000 ft., the mean temperature in January is 34.9° F., and in July 57.5°, the mean annual being 45.4°. These conditions contrast with those at Derby, in the southern lowland, where the figures are respectively 37.5°, 61.2° and 48.8°, while intermediate conditions are found at Belper, 9 m. higher up the Derwent valley, where the figures are 36.3°, 59.9° and 47.3°. The contrasts shown by the mean annual rainfall are similarly marked. Thus at Woodhead, lying high in the extreme north, it is 52.03 in., at Buxton 49.33 in., at Matlock, in the middle part of the Derwent valley, 35.2 in., and at Derby 24.35 in. Entry: DERBYSHIRE
_Monsoon Climate._--Exceptions to the general rule of rainier eastern coasts in trade-wind latitudes are found in the monsoon regions, as in India, for example, where the western coast of the peninsula is abundantly watered by the wet south-west monsoon. As monsoons often sweep over large districts, not only coast but interior, a separate group of monsoon climates is desirable. In India there are really three seasons--one cold, during the winter monsoon; one hot, in the transition season; and one wet, during the summer monsoon. Little precipitation occurs in winter, and that chiefly in the northern provinces. In low latitudes, monsoon and non-monsoon climates differ but little, for summer monsoons and regular trade-winds may both give rains, and wind direction has slight effect upon temperature. Entry: TEMPERATURE