This survey was undertaken in the hope of extending our knowledge of the Appalachian Mountain System and i t s erosional history by study of the topography of part of the System in Canada, The area studied lies chiefly in…

During the last thirty years there has developed a trend of investigation designed to ascertain the actual material necessary for the growth of various micro-organisms. Such research was initiated because of the desire to culture bacteria in media of known…

Throughout the eighteenth and nineteenth centuries, Hume's philosophical -writings received little attention, except in Scottish circles, and it was not until the present century that Hume came to be generally regarded as one of the greatest British philosophers. At the…

Microchemlcal analysis is one of the many methods used in the chemical examination of minerals. This method requires a petrographic microscope and also a knowledge of optical mineralogy. Since the microchemlcal method requires only a small sample, it is preferable…

The land use survey is becoming an increasingly important item in geographic studies. This is especially so when such studies are undertaken for the solution of land use problems, because a knowledge of the present use of the land is…