Junior High School Mathematics Volume 3 Author:David Eugene Smith, George Wentworth, Joseph Clifton Brown While this book presents a thoroughly practical kind of mathematics, as do also Books I and II, it is the purpose of the book to make the treatment sufficiently formal to enable the student to appreciate more fully the nature of pure mathematics. It is only by so doing that the door of the science can be opened sufficiently to enable him to dete... more »rmine whether he should pursue the subject further.« less