overheightened

— A final exercise, and one which the children will greatly enjoy, is the making of a model based on the contour map. Cut in thin cardboard, of which no fewer than 25 sheets will be an inch high, the coutours of one prominent hill, mountain, or valley, cutting first along the contour lines on the map and after this placing the cut out piece on the cardboard and cutting out the latter along the edges of the pattern so obtained. Begin at the lowest contour, so that each following portion is smaller than the preceding and can be pasted on to the same in such a position as was the contour on the map. When you get to the top a perfect little mountain will be finished, from five to ten times overheightened, of course, but even so less distorted than a crude clay model would be. If you desire, you can fill out the spaces between the cardboard layers with some soft material, but this is not necessary. ‘The mountain, when seen from above, will offer an aspect so much like that of the contour map that even the most obstinate adversaries of those maps will have to look for other arguments against them than their being too difficult for non-scientists to understand.