In the 1830s Louis Agassiz proved that these moved, bringing with them the rocks & boulders that covered Europe
Two large valley ... [PAR] Some 10% of the Earth's land surface today is covered by ice, a figure that ... 
went glaciations of continent-wide extent on several occasions, some of them 
even more ... providing a link between what we see at the surface and the rock 
record; and .... of the Swiss Society of Natural Sciences, Louis Agassiz, and it is 
he who... [DOC] [TLE] Louis Agassiz - National Academy of Sciences [PAR] In Europe he already oc- cupied among ... (Louis Agassiz, the celebrated 
naturalist, was born in this house ... drew these two young men together, and 
established between them a sympathy ... "I bring to you," said Braun, in a letter to 
his father, "one who ..... home in the autumn of 1830, and the question of a 
situation which.