a German naturalist, botanist and geographer. Gmelin was elected one out of three professors to join Vitus Bering’s Second Kamchatka Expedition (1733–43). During the early part of the expedition - leaving St Petersburg in August 1733 - he was accompanied by the young student Stepan Krasheninnikov. They travelled together through the Urals and western Siberia to Yeniseysk. He described the position of the Yenisey river as a boundary between Europe and Asia and participated in measuring the lowest temperature ever recorded at Yeniseysk. He was also the first person to measure the fact that the level of the Caspian Sea was below that of the Mediterranean Sea.
