s surroundings and the manner of his life. There can be no more important field than for us to thus learn of the past. To read the story of primitive man, to walk with him the earth in ages long ago, with him to wage war on the huge animals of a previous epoch, to recede with him before the relentless march of the ice of the Glacial Age, to watch his advance in culture, to investigate whether there are any races of men now living which are the direct descendants of this primeval man.
The author makes no claims to original investigations. He trusts, however, it will not be considered impertinent for a mere loiterer in the vestibule of the temple of science to attempt to lay before others the results of the investigations of our eminent scholars. He has endeavored faithfully to perform this task. As far as possible technical language has been avoided. This is because he has written not for the distinctively scientific men, but rather for the farmer, the mechanic, and the man of business. Constant referen