![](https://coimages.sciencemuseumgroup.org.uk/279/925/large_thumbnail_b650273.jpg)
Chromatics of the Sky
![Chromatics of the Sky](https://coimages.sciencemuseumgroup.org.uk/671/492/small_thumbnail_smg00007799.jpg)
![Chromatics of the Sky](https://coimages.sciencemuseumgroup.org.uk/203/777/small_thumbnail_1889_0065_0013.jpg)
drawing. chalk and crayon, col; no 136. 1883, Oct 9, 5.15pm. Dense purple at horizon, with yellow orb on very pale pink sky, streaked with purple. Dark purple heavy cloud above the orb. Weather supervening. Wly and NWly winds. Fresh and fair generally, but with some showers on the 10th. / John Sanford Dyason