Lake Superior is one America's great lakes and has a fascinating geological and ecological history. Louis Agassiz was one of the foremost scientific thinkers of his age, known today as 'the father of the ice age', his interests spanned many topics and he brought all of his focus and passion to bare on this study of one of the most fascinating areas of America. Это и многое другое вы найдете в книге Lake Superior; Its Physical Character, Vegetation, and Animals Compared with Those of Other and Similar Regions (Louis Agassiz)