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ILLUSIONS : A Psychological Study. By James Sully, author of "Sen- 

 sation and Intuition," etc. ("International Scientific Series.") 12mo, cloth. 

 Price, $1.50. 



This volume takes a wide survey of the field of error, embracing in its view net 

 only the illusions commonly regarded as of the nature of mental aberrations or hallu- 

 cinations, but also other illusions arising from that capacity for error which belongs 

 essentially to rational human nature. The author has endeavored to keep to a strictly 

 scientific treatment — that is to say, the description and classification of acknowledged 

 errors, and the exposition of them by a reference to their psychical and physical con- 

 ditions. 



"The latest number of Appletons 1 'International Scientific Series 1 bears the title 

 of ' Illusions,' and is an interesting contribution by Mr. James Sully to the study of 

 mental pathology. The author's field of inquiry covers all the phenomena of illusion 

 observed in sense-perception, in the introspection of the mind's own feelings, in the 

 reading of others 1 feelings, in memory, and in belief. The author's conclusions are 

 often illustrated by concrete example or anecdote, and his general treatment of the 

 subject, while essentially scientific, is sufficiently clear and animated to attract the 

 general reader."— New York Sun. 



"This is not a technical work, but one of wide popular interest, in the principles 

 and results of which every one is concerned. The illusions of perception of the senses 

 and of dreams are first considered, and then the author passes to the illusions of intro- 

 spection, errors of insight, illusions of memory, and illusions of belief. The work is a 

 noteworthy contribution to the original progress of thought, and may be relied upon 

 as representing the present state of knowledge on the important subject to which it 

 is devoted."— Popular Science Monthly. 



A SELECTION FROM THE LETTERS OF MADAME DE REMU- 



SAT. 1S04-1S14. Edited by her Grandson, Paul de Eemttsat, Senator. 

 Uniform with "Memoirs of Madame de Eemusat," 1S02-1S08. 12mo, cloth. 

 Price, $1.25. 



" 'A Selection from the Letters of Madame de Eemusat to her Husband and Son 1 

 has been published by the Appletons. Coming closely upon the fascinating memoirs 

 of that lady, they possess the same interest, and will add to the readers knowledge 

 of social and political life in France in the days of the first Napoleon. They deal, of 

 course, largely with family matters, but for all that we get vivid glimpses of public 

 life, and, from Madame de Eemusat's intimate acquaintance with political affairs, we 

 ean pick up here and there hints which do not appear in French history, and yet are 

 absolutely necessary to a thorough understanding of it. 11 — Boston Evening 'Tran- 

 script. 



THE ART OF SPEECH. Vol. II. Studies in Eloquence and Logic. By L. 

 T. Townsend, D. D., Professor in Boston University, and Dean of Chautauqua 

 School of Theology. Uniform with Vol. I. Studies in Poetry and Prose. 18mo, 

 cloth. Price, 60 cents. 



Contents of Vol. II: Part I, Studies in Eloquence: Introductory; History of 

 Eloquence; Life and Character of Demosthenes ; Oration on the Crown; Inferences; 

 Inferences {continued)', Inferences (continued) \ Inferences (concluded).— Part II, 

 Studies in Logic: Introductory; Argumentation; Classification; Practical Observa- 

 tions.— Supplemental Notes. 



For sale by all booksellers; or sent by mail, post-paid, on receipt of price. 



D. APPLETON & CO., Publishers, 



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