Our website is made possible by displaying online advertisements to our visitors.
Please consider supporting us by disabling your ad blocker.

Download links will be available after you disable the ad blocker and reload the page.

INTRODUCTION Nature in her ever-constant, ever-changing phases is indispensable to man, his whole existence depends upon her, and she influences him in manifold ways, in mind as well as body. The physical character of a country is reflected in its inhabitants; the one factor of climate alone gives a very different outlook to northerner and southerner. But whereas primitive man, to whom the darkness of night meant anxiety, either feared Nature... more...