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POPULAR SCIENCE MONTHLY 



were, fell by the way during the writer's 

 own struggle to the Logik and the tncyclo- 

 pa^dieP The thought of publishing them 

 was not entertained at the time, but, while 

 some of them were destroyed before any 

 such thought occurred, what remain are 

 given unchanged; and the hope is enter- 

 tained that " they may assist, or, should they 

 fail to assist, they may succeed to encour- 

 age ; for, representing various stages of suc- 

 cess or unsuccess in the study of Hegel, they 

 may be allowably expected to have peculiar 

 meaning for more than one student, who, 

 finding his own difficulties reflected in what 

 claims to have passed them, may feel him- 

 self stimulated afresh to a renewed at- 

 tempt." 



A new feature presents itself at first sight 

 in the volume on metals of Mr. Bailey's Tu- 

 torial Chemistry* Chemical physics is given 

 prominence, and the first place. Yet the au- 

 thor has s(3ught to include only such topics 

 as are essential to a due appreciation of the 

 modern science. The section, however, con- 

 tains many subjects that are not commonly 

 brought before the student at so early a 

 stage. The elements are taken in the order 

 suggested by the periodic system, and the 

 characteristic properties of each family are 

 summarized. This has been done, the author 

 says, so as to bring out the relationships 

 which exist between the different members 

 of the same family, .and so as to represent 

 (by a consideration of these summaries pro- 

 gressively) the whole of the chemical ele- 

 ments in a continuous series. A list of ex- 

 periments is given in the appendix. The lit- 

 erary style of the book is concise and clear. 



Pi'ofessor Ladd has written his OidlineK 

 of Deseriptive Psychology f with the definite 

 intention constantly in view of adapting it to 

 certain beginners — students in colleges and 

 normal schools — with an average grade of 

 culture and the average amount of time at 

 disposal. He has therefore had in mind 



* The University Tutorial Series. The Tutorial 

 Chemistry. Part II, Metals. By G. H. Bailey. 

 Edited by William Briggs. London : W. B. Clive, 

 University Correspondence Press. New York: 

 Hinds & Noble, Cooper Institute. Pp. 300 



t Outlines cf Descriptive Psychology. A Text- 

 book of Mental Science for Colleges and Normal 

 Schools. By George Trumbull Ladd. New York : 

 Charles Scribner's Sons. Pp. 428. Price, S1.50. 



throughout both the pupil and the teacher 

 in their mutual relations, and has taken all 

 pains so to present the subject that it can be 

 " intelligently and ' economically ' yet thor- 

 oughly studied and successfully taught." 

 The subject, the phenomena of human men- 

 tal life, is treated from the different points 

 of view, and with the aid of all the methods 

 of research, particularly those of experi- 

 mental and physiological investigations, 

 which belong to modern psychology. These 

 investigations are, however, at least for the 

 present, liable to the criticism that they are 

 unable to deal with the later and more com- 

 plex developments of the mind. " Unless we 

 describe, and as far as possible explain, the 

 growth of intellect, the knowledge of self 

 and of things, the formation of the higher 

 sentiments and emotions, and the conditions 

 for the attainment of character, we neglect 

 the main part of the task of the psycholo- 

 gist." Without overlooking the treatment of 

 more fundamental processes, the author has 

 tried to give these " higher faculties ' ' the 

 amount of space they deserve and require. 

 Admitting that the value and success of the 

 experimental method ought not to be ques- 

 tioned. Professor Ladd believes that its rep- 

 resentatives are tempted to exaggerate its 

 promise and its superior productiveness, and 

 maintains that it can never be pursued with- 

 out dependence upon introspection. Both 

 the analytic and the genetic methods of 

 treating the subject are followed. In the 

 first part of the work. The Processes of 

 Mental Life, those elementary forms of func- 

 tioning which analysis discovers as entering 

 into all mental life are described. In the 

 second part. The Development of Mental 

 Life, the evolution of the principal faculties 

 of mind is traced as much as possible in 

 their combined and interdependent action. 

 Clearness, conciseness, and order are sought 

 in the presentation. 



Mr. Edward Bradford Titchcner aims in 

 his Primer of Psychology * to outline, with 

 as little of technical detail as is compatiljle 

 with accuracy of statement, the methods and 

 results of modern psychology, and to stimu- 

 late the reader by means of questions and 



* A Primer of Psychology. By Edward Brad- 

 ford Titchener. New York : The Macmillan Com- 

 pany. Pp. 314. Price, %\. 



