 These contours are lines of equal elevation — lines along which the ground would be touched by the border of a water surface (of the ocean, for instance) if it were repeatedly raised by a given amount. Contour lines express three features of relief...  The Journal of the Canadian Mining Institute - Page 77by Canadian Mining Institute - 1906Full view - About this book
 | 1904 - 976 pages
...are readily understood and interpreted by the layman, except, perhaps, the brown "contour'1 lines. These contours are lines of equal elevation — lines...ocean, for instance) if it were repeatedly raised bv a given amount. E Mrnl view ami corresponding contour map. Contour lines express three features... | |
 | Henry Gannett - 1904 - 522 pages
...and are readily understood and interpreted by the layman, except, perhaps, the brown "contour" lines. These contours are lines of equal elevation— lines...instance) if it were repeatedly raised by a given amount. FIG. 1. — Ideal view and corresponding contour map. Contour -lines express three features of relief... | |
 | Geological Survey (U.S.) - 1904 - 258 pages
...and are readily understood and interpreted by the layman, except, perhaps, the brown "contour" lines. These contours are lines of equal elevation— lines...instance) if it were repeatedly raised by a given amount. FIG. 1.— Ideal view and corresponding contour map. Contour lines express three features of relief... | |
 | Illinois State Geological Survey - 1909
...and interpreted by the layman, except, perhaps, the brown "contour" lines. These contour lines are of equal elevation — lines along which the ground...elevation; (2) horizontal form, and (3) grade or slope. To explain more clearly the manner in which the contours shown on .the maps of the Geological Survey... | |
 | Illinois State Geological Survey - 1907 - 302 pages
...the layman, except, perhaps, the brown "contour" lines. WILSON. J CO-OPERATIVE TOPOGRAPHIC SURVEY. These contours are lines of equal elevation — lines...elevation, (2) horizontal form, and (3) grade or slope. To explain more clearly the manner in which the contours shown on the maps of the Geological Survey... | |
 | Illinois State Geological Survey - 1909 - 420 pages
...and interpreted by the layman, except, perhaps, the brown "contour" lines. These contour lines are of equal elevation — lines along which the ground...elevation; (2) horizontal form, and (3) grade or slope. To explain more clearly the manner in which the contours shown on the maps of the Geological Survey... | |
 | Illinois State Geological Survey (1905- ) - 1909 - 424 pages
...and interpreted by the layman, except, perhaps, the brown "contour" lines. These contour lines are of equal elevation — lines along which the ground...elevation; (2) horizontal form, and (3) grade or slope. To explain more clearly the manner in which the contours shown on the maps of the Geological Survey... | |
 | Illinois State Geological Survey - 1909 - 506 pages
...and interpreted by the layman, except, perhaps, the brown "contour" lines. These contour lines are of equal elevation — lines along which the ground...elevation; (2) horizontal form, and (3) grade or slope. To explain more clearly the manner in which the contours shown on the maps of the Geological Survey... | |
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