BY EMINENT SQENTISTS. 



Foot-Notes to Evolution. 



A Series of Popular Addresses on the Evolution of Life. By 

 David Starr Jordan, Ph.D., President of Leland Stanford Junioi 

 University. i2mo. Cloth, $i.75- 



This book is a popular review of the evolution philosophy of to-day, con-. 

 sidered more especially in its biological aspects. The essential unity of al] 

 organisms, both plant and animal, the fact that progress in life consists solely 

 of adaptation to environment, and the relation of heredity and degeneration to 

 the evolutional scheme, are among the points of special interest. 



Outlines of the Earth's History. 



By Prof. N. S. Shaler, of Harvard University. Illustrated. i2mo. 

 Cloth, $1.75. 



The object of this book is to provide the beginner in the study of the earth'i 

 history with a general account of those actions which can be readily understood 

 and which will afford him clear understanding as to the nature of the processes 

 which have made this and other celestial spheres. 



The Psychology of Suggestion. 



A Research into the Subconscious Nature of Man and Society. By 

 Boris Sidis, M.A., Ph.D., Associate in Psychology at the Pathological 

 Institute of the New York State Hospitals. With an Introduction by 

 Prof. William James, of Harvard University. Cloth, $1.75. 



The book is an original investigation into the nature of suggestion and into 

 the subconscious mechanism of the human mind. The subconscious nature of 

 man's psychic life is closely examined, and a theory of the constitution and 

 activity of the mind is worked out. The theory of the subconscious is used to 

 elucidate many important pathological phenomena of individual and social 

 Hfe, Mental epidemics are traced to their source, and their causes and nature 

 of operation are examined and explained. 



Evolutional Ethics and Animal Psychology. 



By E. P. Evans. Cloth, $1.75. 



Contents.— The Ethics of Tribal Society. Religious Belief as a Basis of 

 Moral Obligation. Ethical Relations of Man to Beast. Metempsychosis. 

 Mind in Man and Brute. Progress and Perfectibility in the Lower Animals. 

 Ideation in Animals and Men. Speech as a Barrier between Man and Beast. 

 The .(Esthetic Sense and Religious Sentiment in Animads. Bibliography. 

 Index. 



D. APPLETON AND COMPANY, NEW YORK. 



