xvi PREFACE. 



For the typographical errors in two of the chapters, their authors, viz., Prof. R. 

 P. Whitfield and Edward Orton, Jr., must not be held accountable, as it was not 

 practicable to give them the opportunity of reading their own proof. 



Many defects and errors, typographical and otherwise, I recognize, but in exten- 

 uation, I may urge that the preparation and publication of the volume have been 

 attended with some peculiar disadvantages, which it is not necessary to explain. In 

 view of the facts, I bespeak the lenient judgment of the reader. E. O 



