y Paul Carus

An investigation of the facts of physiological and experimental
psychology. =Illustrated. Cloth, $1.50 net; paper, 85c.=

Plant Breeding By Hugo De Vries

Comments on the experiments of Nilsson and Burbank.
=Illustrated. Cloth, gilt, $1.50 net=

The Rise of Man By Paul Carus

A sketch of the human race. =Illustrated. Boards, cloth back,
75c net=

Species and Varieties, Their Origin and Mutation By Hugo De Vries

Edited by D. T. MacDougal. =Price, $5.00 net=

The Mutation Theory By Hugo De Vries

Experiments and observations on the origin of species in the
vegetable kingdom. (2 vols.) Translated by Prof. A. B. Farmer
and A. D. Darbishire. =Numerous illustrations, colored plates.
Cloth, per volume $4.00 net.=

Intracellular Pangenesis By Hugo De Vries

Including a paper on fertilization and hybridization. Translated
from the German by C. Stuart Gager. =Cloth, $3.00 net.=

On Memory and the Specific Energies of the Nervous By Ewald Hering
System

New edition, including "The Theory of Nerve Activity."
=Price, $1.00; paper, 30c.=

Psychology of the Nervous System By Paul Carus

An extract from the author's larger work, "The Soul of Man."
=Price, 30c.=

The Psychology of Reasoning By Alfred Binet

Translated by Adam Gowan Whyte. =Cloth, 75c net=

Has the Psychological Laboratory Proved Helpful? By L. M. Billia

Translated from the French by Lydia G. Robinson. =Pp. 16. Paper,
15c net.=

A Mechanico-Physiological Theory of
Organic Evolution By Carl von Nageli

Summary. =30c.=

Experiments on the Generation of Insects By Francesco Redi

Translated from the Italian edition of 1688 by Mab Bigelow.
=Illustrated. Cloth, $2.00 net=

Science and Faith, or Man as an Animal, and Man
as a Member of Society, with a Discussion on
Animal Societies By Paul Topinard

Translated by T. J. McCormack. =Price, $1.50 net=

A First Book in Organic Evolution By D. Kerfoot Shute

Written especially for the use of students. =Illustrated, seven
colored plates, 2d ed. Cloth, $1