PREFACE TO THE SECOND EDITION. 



The author desires to express his obligation to the teachers 

 whose approval has made necessary, thus early, a second edi- 

 tion of the work. The success of any text is, on last analysis, 

 due to the insight of the teacher who uses it. The writer will 

 be glad to welcome, from teachers, suggestions for later 

 editions. 



The new edition makes it possible to remove some typo- 

 graphical and other errors, and to make certain minor changes 

 and additions which it is hoped will render the book more 

 acceptable. 



A slight change is made in the title; and the publishers 

 announce a reduction in the price. 



T. W. GALLOWAY. 



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