540 PROGRESS OF ANTHROPOLOGY IN 1890. 



ent delayed for lack of workers. Some progress is, however, bein^ 

 jnade in studying the fusion of sensations of liglit, the laboratory pos- 

 sessing special apparatus by which colored surfaces of given areas may 

 ill any succession work on the retina for given times. Mr. Newbold, who 

 has been helping with the experiments on memory, is about to begin a 

 research on attention, and it is hoped that next year there will be 

 others ready to undertake original work. Among the subjects for which 

 apparatus has been secured and preliminary study has been made are: 

 The building of complex perceptions, exertion, and fatigue, the meas- 

 ureuuMit of contrast, the association of ideas, and subconscious mental 

 l)rocesses. 



Dr. Joseph Jastrow has prepared for the series of Fact and Theory 

 Papers a small volume on the time-relations of mectal phenomena. "The 

 study of the time-relations of mental phenomena is important from 

 several points of view. It serves as an index of mental com})lexity, 

 giving the sanction of objective demonstration to the results of subjec- 

 tive observation ; it indicates a mode of analysis of the simpler mental 

 acts, as well as the relation of these laboratory products to the pro- 

 cesses of daily life; it demonstrates the close interrelation of psycho- 

 logical with physiological facts, an analysis of the former being indis- 

 pensable to the right comprehension of the latter; it suggests means 

 of lightening and shortening mental operations, and thus ofi'ers a mode of 

 improving educational methods ; and it promises in various directions to 

 deepen and widen our knowledge of those processes by the complication 

 and elaboration of which our mental life is so wonderfully built up. An 

 excellent bibliography of well selected authorities relating to general psy- 

 cho-physics, time-reactions, adaptive reactions, and association times 

 will be found at the end of the volume. The American Journal of 

 Psychology, edited by President Stanley Hall, and published at Clark 

 University, Worcester, Massachusetts, is the standard authority an the 

 l)hysical side of psychology. 



Metaphysical psychology, represented in the English publication 

 Mind, may be said to have fairly entered the arena of anthropology 

 since the revelations of consciousness are now subjected to experi- 

 mental examination. The following topics show the range of study on 

 both sides: Animal Intelligence, Alix, Foveau ; Double Conscious- 

 ness, Binet; Effect of Fatigue on Muscular Contraction, Lombard; 

 Effect of Music on Animals, Stearns, Weissman ; Experimental Psy- 

 chology, Jastrow; HistoryofEetlex Action, Hodge's Hypnotism, Felkin, 

 Junes, Lays, Moll, St. Clair, Bonjean, and many others ; Inhibition in the 

 Phenomena of Conscience, Beriet; Intelligence of Animals, Corsetti; 

 Mental Evolution, Varigny; Mental Tests, Cattell ; Origin of Mind, 

 Cams; Origin of Human Faculty, Komanes ; Perception of Length and 

 Number Among Little Children, Binet; Physiognomy and Expression, 

 Mantegazza; Principles of Psychology, James; Psychic Life of Micro- 

 organisms, Beriet; Psychic Time Measures, Fricke; Psychology of 



