A side wind causes excessive flange friction on the leeward side of the train, and increases the tractive resistances therefore very considerably, even though its velocity be relatively moderate.
Limnaea and Planorbis); the existence of belts of dead poplars, patches of dead and moribund tamarisks, and vast expanses of withered reeds, all these crowning the tops of the jardangs, never found in the wind-scooped furrows; the presence of ripple-marks of aqueous origin on the leeward side of the clay terraces and in other wind-sheltered situations; and, in fact, by the general conformation, contour lines, and shapes of the deserts as a whole.
Over the whole width of the country from coast to coast, or of the Welsh mountain ranges only, this is so; but it is nevertheless true that the leeward side of an individual valley or range of hills generally receives more rain than the windward side.
From this cause also, therefore, the leeward side of the valley receives more rain than the windward side.
The sugar farms are mostly on the islands of Hawaii, Oahu, Maui and Kauai, at the bases of mountains; those on the leeward side have the better soil, but require much more irrigating.
Or leeward side of the Olympics.
Low down on the leeward side it is dark red and fertile, but still too pervious to retain moisture well.