Peter Kropotkin and John Thomas Bealby, 1911 Encyclopædia Britannica (1911)
“ Some 50 m. below Chinaz (770 ft. above sea-level) the Syr bends northwards, but resumes its north-westerly course 150 m. farther down, following with remarkable persistency the edge of the loess. Its low banks, overgrown with reeds and rendered uninhabitable in summer by clouds of mosquitoes, are inundated for 20 m. on both sides when the snows begin to melt. These inundations prevent the moving sands of the Kyzyl-kum desert from approaching the Syr; below Perovsk, however, the steppe does gain the upper hand. Down to Perovsk the river rolls its muddy yellow waters, at the rate of 3 to 5 m. ”
