How a group spreads

Catalogued

Pollution rose

Made by
Air pollution meteorology practice
Year
1960s
Field
Meteorology and climate
Kind
Data display
Room
How a group spreads — Placed by reading its description, not yet studiedCould also hang in: Places
Skeleton drawing, not the original plate

2 other forms share this skeleton

Source

Harris 1999, Information Graphics

Attribution less certain: contested, or no single inventor recorded

Searches, not citations

archive.orgcommons.wikimedia.orgscholar.google.com