ELEMENTARY METEOROLOGY BY WILLIAM MORRIS DAVIS 1894, PREFACE. THOSE who are already acquainted with, the science of meteorology will need no words of mine to show that the greatest share of whatever value this book may contain comes from my having studied and followed the work of the late Professor William Ferrel of Washington. To his remarkable insight and ingenious analysis we owe the best part of the understanding of general atmospheric processes that has yet been reached. Those who here first come to know something of the science of the atmosphere, and who are perhaps thus brought to desire further acquaintance with it, should not fail to study TTerrePs Popular Treatise on the Winds, in which his more mathematical essays are reduced to a simpler form. Yet after Ferrel, an almost equal indebtedness must be acknowledged to Professor Julius Hann of Vienna, from whose broad and accurate studies I have found assistance at every turn. His Klimatologie, the standard work of the kind,...