< Page:EB1911 - Volume 02.djvu
This page has been validated.
AURORA
Plate I.
 |
| Fig. 1—TWO TYPES OF AURORAL ARCS. |
 |
| Fig. 2—TWO TYPES OF AURORAL RAYS. |
(From the Internationale Polarforschung, 1882–1883, by permission of the
Kaiserlichen Akademie der Wissenschaften, Vienna.)
This article is issued from Wikisource. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.