Plant Breeding. Comments on the Experiments of Nilsson and Burbank. By Hugo de Vries. Pages, xv, 360. Illustrated with 114 half-tone plates from nature. Printed on fine paper, in large type. Cloth, gilt top. Price, $1.50 net.
A scientific book in simple language. Intensely interesting as well as instructive. Of special value to every botanist, horticulturist and farmer.
Species and Varieties, Their Origin by Mutation. Lectures delivered at the University of California by Hugo de Vries, Professor of Botany in the University of Amsterdam. Pages, xviii, 847. Cloth, gilt top, $5.00 net.
The Mutation Theory. Experiments and Observations on the Origin of Species in the Vegetable Kingdom. 2 vols. Numerous illustrations, colored plates. By Hugo de Vries. Translated by Prof. A. B. Farmer and A. D. Darbishire. Cloth, per volume, $4.00.
This is de Vries' great book on a new explanation of the evolution theory, accounting for the formation of species not by the struggle for existence but by mutation.
Intracellular Pangenesis. Including a paper on Fertilization and Hybridization. By Hugo de Vries. Translated from the German by C. Stuart Gager. Cloth, $3.00 net.
This is de Vries' first important book. It is not very large, but ought to be read by all students of botany, and also by those who are interested in the theory of evolution.
On Orthogenesis and the Impotence of Natural Selection in Species-Formation. By Th. Eimer. Translated by T. J. McCormack. Price, paper, 30c net.
Another critic of Darwin who claims that organisms develop through transmission of acquired characters.
On the Inheritance of Acquired Characters. By Eugenio Rignano. Translated by Basil C. H. Harvey. With an Appendix "On the Mnemonic Origin and Nature of Affective Tendencies." Cloth, $3.00 net.