Rensch, B. - Evolution above the Species Level.

London: Methuen and Co, Ltd., 1959. First edition in English. Pp. xvii, 419, 113 text-figures and photos. Publisher's blue cloth with orange cloth title box, lg 8vo. Translated from the German edition of 1954. The object of this book is to examine critically all special factors and rules concerning transspecific evolution, to determine their validity, and to explore the possibility of interpreting them by the evolutionary mechanisms that are known to science. Dobzhansky, who wrote the foreword, describes this ""as one of the great books which has appeared since 1940."" From the library of George H. Beatty, III with his oval bookplate on the first endpaper. A bright and clean in near fine condition..

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