The Themes button enables you to narrow down your display to specific
subject areas within all books, with the exception of The Hutchinson
Chronology of Science, which is sorted chronologically. These are:
You can select one or more of these themes to filter the subject areas you wish to see displayed.
To select themes, click on the Themes button on the HSRS menu bar. The Select Subject screen appears. Select the subject areas you wish to see by checking or unchecking the relevant boxes, then click on OK.
When the theme filter is selected, the pattern on the Themes button changes, to remind you that the contents list will only display articles in the subject areas you have chosen. To revert to listing all subject areas, click on the Themes button, select All, then click on OK.