Image Description from historic lecture booklet: "Ice bodies of the third class, as their name implies, are of vast extent and may even cover entire continents. Existing examples are confined to Greenland and to Antarctic regions. Others that have now vanished left unmistakable records over large portions of northeastern North America and northwestern Europe. The principal characteristic of continental glaciers are their vast extent, their comparatively level surface, and the prolongation of portions of their borders into lobes and even into well-defined streams, were the topographic and other conditions are favorable. The total amount of snow and ice on all land is perhaps as much as a million cubic miles. If this amount of ice were all melted and returned to the sea, it would raise its level about thirty feet."
Image Description from historic lecture booklet: "Most of those who have gone to live in Australia are English-speaking people, and they have discouraged the importation of Negroes from Africa and of laborers from India and China. More help is needed in order to develop the great resources of the country, but the white inhabitants prefer to develop them less rapidly and to keep the country for those who use the same language and have similar ideals of social, industrial, and political life. "
