The larger work also contains the reasons for many statements which are here given as facts without qualification.
Reference to the _Students' History_ is made easy by the fact that the divisions or parts (here marked by Roman numerals) cover the same periods in time as the chapters of the larger work.

On the margins of the present volume will be found specific references to three text-books radically unlike this text-book either in proportion or in point of view.

There are also references to easily accessible sources and to a few of the larger works.

It is not suggested that any one pupil, or even one class, shall study or read all of these references.

But every pupil may well read some of them under each division.