Atlas for Practical Exercises in Physical Geography - Softcover
This historic book may have numerous typos, missing text or index. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. 1908. Not illustrated. Excerpt: ... EXERCISE V. THE SCULPTURE OF MOUNTAINS Object. To explain various features of mountain ranges. Preliminary. 111 gives a general view over a rolling district of low hills and shallow valleys, all covered with a deep weathered soil. The district is drained by a large river and many smaller streams, all flowing quietly and smoothly through their flood plains. The soils vary from place to place, as if the underlying rocks were of different kinds. Some low mountains rise in the E. and NW.; there the soil is thinner and more stony. The view is cut off in front by a vertical section, the baseline of which is at sea level. Altitudes are marked at various points; a scale of altitudes is drawn near the NE. corner, and a scale of miles along the front baseline. This exercise uses 11,12,14,13, ifi, 1-22 [also 37 1-5]. Note that Plate 14 is to be used before Plate 13. 1. 1. The distance along the winding river A to E, 11 1, being 30 mi., what is the average fall of the river in feet per mile? 2. If E is 600 mi. from the river mouth, what is the average fall from E to the sea? 3. What is (about) the width of the main river flood plain? 4. The altitudes on stream (or small river) F (SE. corner of 111) are indicated for points two miles apart. What is its average fall? the width of its flood plain? 5. Why may the streams of this district be described as "thoroughly graded with respect to their general baselevel" (the ocean)? 0. What is the general altitude of the interfluves, or spaces between the small livers (see foreground profile)? their relief? 7. What is the altitude of the highest mountain on the N. border? the general relief in that mountain group? Note: To find (roughly) the height of the mountain above the surrounding district, draw a straight line between the parts o...
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- PublisherGeneral Books LLC
- Publication date2012
- ISBN 10 1150430230
- ISBN 13 9781150430237
- BindingPaperback
- Number of pages52
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