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THE POPULAR SCIENCE MONTHLY. 



count of the superlative literary merit of the 

 tragedy, but also for the editor's excellent 

 critical introductions, in which he gives an 

 account of the growth of the legend of 

 Iphigenia, an analysis of the plot and artis- 

 tic structure of the work, and a dissertation 

 on the meters and technique. The volume 

 is one of the publishers' " College Series of 

 Greek Authors," edited under the supervis- 

 ion of J. W. White and T. D. Seymour. Pp. 

 197. Price, $1.50. Mr. Addison Hague's 

 Irregular Verbs of Attic Prose gives, after 

 the regular verbs, pure, mute, and liquid, the 

 irregular verbs in alphabetical order, with 

 prominent meanings and special uses of fre- 

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 lated examples, the most important com- 

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 hundred and fifty English derivatives. The 

 volume constitutes a helpful bridge over a 

 most difficult passage in the study of Greek. 

 Pp. 268. Price, $1.60. 



Prof. S. E. Tillman's Elementary Lessons 

 on Heat (J. B. Lippincott Company) have 

 been prepared to meet the necessities of a 

 short course of seventy hours at the United 

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The Manual of Chemistry for the Use of 

 Medical Students of Dr. Brandreth Symonds 

 (P. Blakiston, Son & Co., Philadelphia) is 

 not designed to be a medical chemistry, but 

 takes up those parts of general chemistry 

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 to know. The author, having prepared 

 students for several years in this branch, 

 believes that he knows their needs, and has 

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 a large share of the space is allotted to the 



chemistry of water and air and the sub- 

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In an attractive-looking volume of con- 

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The Kingdom of the Unselfish ; or, the 

 Empire of the Wise (Empire Book Bureau, 

 28 Lafayette Place, New York), has been 

 written by Mr. John Lord Peck with ref- 

 erence to the existing stage of social evo- 

 lution. If not suited to the present state of 

 opinion, it may find a reading in the next 

 century. The purpose of the book is un- 

 folded in the introductory chapter, which is 

 headed " The Reliable and Unreliable in 

 Thought." Of the unreliable are all relig- 

 ious systems founded on tradition and revela- 

 tion, dogma, and speculative philosophy, in- 

 cluding all the systems that have followed 

 one another from Plato and the ancients 

 down to the pessimism of Schopenhauer and 

 Hartmann and the agnosticism of Comte, 

 Huxley, and Spencer. Neither of these last 

 systems " is sufficiently near the final truth 

 to long satisfy the human mind, and the 

 prediction is here ventured that both of 

 them will give way to a system of ontology 



