Ice Age, in North America and Its Bearings Upon the Antiquity of Man

Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. The present treatise is the outcome of special studies upon glacial phenomena begun in the summer of 1874, in the eastern part of Massachusetts, the results of which were published in a communication to the Boston S...