On Germinal Selection as a Source of Definite Variation

by August Weismann

THE PSYCHIC LIFE OF MICRO-ORGANISMS. By Dr.

Alfred Binet. Pp., xii, 120. Cloth, 75c (3s. 6d.). Paper, 30c

(1s. 6d.).

ON GERMINAL SELECTION. By August Weismann. Pp.,

xii, 61. Paper, 30c (1s. 6d.).

ON MEMORY, AND THE SPECIFIC ENERGIES OF THE

NERVOUS SYSTEM. By E. Hering. Pp., 50. Paper, 20c.

A MECHANICO-PHYSIOLOGICAL THEORY OF ORGANIC

EVOLUTION. Summary. By Carl von Nägeli.

Pp., 52. Paper, 20c (9d.).