Notice that the land lowers towards the north in Peru and Bolivia and also from the Guiana highlands. Get the effect by reducing the size of the hills and mountains as they recede, and by making them less definite.
80
MAP OF EURASIA WITH SECTIONS IN DETAIL.
Your pupils may soon excel their teacher in chalk modeling. This is encouraging. The true teacher will rejoice at such proofs of success in instruction and be stimulated to renewed endeavors.
It is of such vital importance that pupils acquire the habit of expression through drawing. [Fig. 80] is a map of “Eurasia” or Europe and Asia together as one continent. It shows the highlands which divide the waters of the northern or long slope, from those of the short slope, i.e., the backbone of the continent or continental axis. About midway between the extreme eastern and western coasts, note the high plateau or center from which many mountain ranges radiate—the Pamir or “Roof of the World” 15,000 feet in height. The plateau of Thibet is also 15,000 feet high, but towering above these are many lofty mountain peaks, some reaching the height of 25,000 to 29,000 feet.
From these plateaus, those of Gobi and Iran, and the highlands in Europe, the land lowers more or less abruptly as it recedes to the north, east and south. To represent the Arctic coast, where the land is mostly low, draw with the horizontal stroke. Between this and the highlands use broken horizontal or slightly curved lines to indicate the broken hilly surface. Be careful to keep the great depressions level around the Black, the Caspian and Aral Seas.