PREFACE 



THAT a work should be written which might introduce 

 students to the elements of all the sciences, has long 

 seemed to the author of this book a thing to be desired. 



Having been unable to find associates for this purpose, 

 he has ventured to undertake it himself. 



Strongly convinced that the student ought to be 

 introduced to mental as well as to physical science, the 

 writer has been careful not to omit the elements of 

 psychology, logic, and philosophy, subjects which he 

 thinks have been far too generally neglected. 



So far as he knows, it is the first work of the kind, on 

 which account he cannot hope to have altogether escaped 

 errors, not only as to matters of fact, but also in the 

 mode of their presentation. He therefore asks the in- 

 dulgence of the reader who may deem any subject too 

 fully or too scantily treated of. 



ORIENTAL CLUB, 



October 28, 1893. 



