Description
http://adb.anu.edu.au/biography/robertson-edward-8232
Related Subjects
The graph displays the other subjects mentioned on the same pages as the subject “Dr Edward Robertson”. If the same subject occurs on a page with “Dr Edward Robertson” more than once, it appears closer to “Dr Edward Robertson” on the graph, and is colored in a darker shade. The closer a subject is to the center, the more "related" the subjects are.