TWENTIETH CENTURY TEXT-BOOKS. 



The closing years of the nineteenth century witnessed a remarkable awak- 

 ening of interest in American educational problems. There has been elaborate 

 discussion in every part of our land on the co-ordination of studies, the bal- 

 ancing of contending elements in school programmes, the professional training 

 of teachers, the proper age of pupils at different 6tages of study, the elimina- 

 tion of pedantic and lifeless methods of teaching, the improvement of text- 

 books, uniformity of college-entrance requirements, and other questions of like 

 character. 



In order to meet the new demands of the country along these higher 

 planes of educational work, the Twentieth Century Text-Books have been 

 prepared. 



At every step in the planning of the series care has been taken to secure 

 the best educational advice, in order that the books may really meet the in- 

 creasing demand from academies, high schools, and colleges for text-books 

 that shall be pedagogically suitable for teachers and pupils, sound in modern 

 scholarship, and adequate for college preparation. 



The editors and the respective authors have been chosen with reference to 

 their qualifications for the special work assigned to them. These qualifications 

 are : First, that the author should have a thorough knowledge of his subject in 

 its latest developments, especially in the light of recent educational discussions ; 

 second, that he should be able to determine the relative importance of the 

 subjects to be treated in a text-book 5 third, that he should know how to pre- 

 sent properly his topics to the ordinary student. 



The general editorial supervision of the series is in the hands of Dr. A. F. 

 Nightingale, Superintendent of High Schools, Chicago, with whom is asso- 

 ciated an advisory committee composed of an expert in each department of 

 study. 



The offer of a complete series of text-books for these higher grades of 

 schools, issued under auspices so favorable, is an event worthy of the twentieth 

 century, and a good omen for the educational welfare of the future. 



One hundred volumes are comprised in the series. A list of those now 

 ready, and of others in preparation, will be sent upon request. 



D. APPLKTON AND COMPANY, NEW YORK. 



