"This Dover edition, first published in 2010, is an unabridged republication of the work originally published in 1961 by Science Editions, Inc., New York"--Prel

This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the publi

This collection of articles, which were first published in 1958 and written on various occasions between 1932 and 1957, forms a sequel to Danish physician Niels