514 KANSAS CITY REVIEW OF SCIENCE. 



as to persuade. Eloquence is, therefore, the art and science of persuasion. Ora- 

 tory, as an art, is such an exercise of rhetorical skill in oral discourse as is im- 

 posing and impressive. The science of oratory is the classification and systematic 

 arrangement of the rules of oratorical art. Oratory is, therefore, the art and 

 science of producing strong impressions by means of oral speech. Eloquence, 

 strictly speaking, generates volition ; oratory generates conviction. On this foun- 

 dation the author builds his work, beginning with the history of eloquence and 

 leading off into its various departments, with illustrations from Demosthenes, 

 (whose Oration on the Crown he analyses fully,) Cicero, Chalmers, Brougham, 

 O'Connell, Webster, Choate, and many other recognized orators. His "Infer- 

 ences " are admirably drawn and stated, and as a book of instruction in the theory 

 and frame vi^ork of oratory, the Art of Speech is a success. 



Text-book of Experimental Organic Chemistry for Students. By H. 

 Chapman Jones; i6mo., pp. 145; Van Nostrand & Co. , 1881. 



This book is not intended by the author as a text-book of organic chemistry, 

 but merely as a laboratory companion for the student who wishes to follow this 

 branch of science practically, as well as theoretically, and especially for those 

 who have but a limited amount of time at their command. The peculiarity of 

 the work is, that in every division appropriate typical experiments are suggested, 

 so that the student who follows out these suggestions with any degree of care, 

 will necessarily acquire a permanent knowledge of at least that particular branch. 

 The subjects discussed thus experimentally, in Part I, are the Cyanogen Com- 

 pounds, the Hydro-carbons and their more immediate derivatives; the alcohols, the 

 ethers, the aldehydes, the acids, the ethereal salts. In Part II the Reactions and 

 Detection of certain organic acids are pointed out; also the methods of detect- 

 ing them by analysis. 



The simplicity of the explanations and the experiments is the chief recom- 

 mendation of the book, as it enables students to proceed with their work with 

 very little assistance from professors or teachers. The practical character of the 

 subjects discussed is another advantage to this class of students, who are more 

 likely than others to need to apply their knowledge to the practical affairs of life. 



OTHER PUBLICATIONS RECEIVED. 



The cultivation of Pyrethrum and manufacture of the powder, use of Pyreth- 

 rum as an insecticide. Prof. C. V. Riley. Apportiontment under the loth Census 

 of the United States, with remarks, by Hon. S. S. Cox; Subjects and Questions 

 pertaining to Political Economy ; Usury Laws, their nature, expediency and in- 

 fluence, by R. H. Dana, Jr., David A. Wells and others, loc. ; Semi-annual Re- 

 port of the Comptroller of the City of Kansas for six months ending June 30, 

 1881 ; Annual Report of the Board of Trade of Minneapolis, Minn., 1880; Re- 



