Astronomy: an atmospheric condition producing sun dogs, giving the effect of two suns. Engraving by F.R. Hay, 1820, after W.M. (?) Craig.
- Craig, William Marshall, 1763 or 1764-1829.
- Date:
- May 1 1820
- Reference:
- 46620i
Licence: Public Domain Mark
Credit: Astronomy: an atmospheric condition producing sun dogs, giving the effect of two suns. Engraving by F.R. Hay, 1820, after W.M. (?) Craig. Wellcome Collection. Source: Wellcome Collection.