Royal Society, Miscellanea Curiosa, Vol. 3
“ The channel certainly is natural and not cut by art, as some have idly fansied, not considering, how the Euxine Sea should discharge it self otherwise of those great quantities of waters, poured into it by the Ister and Tanais, now called Don, and the other Rivers, whereby it becomes less salt, even very sensibly to the taste, than several parts of the Mediterranean. ”
