Salisbury Craigs

You may have noticed this blog's new look;) I have adopted the design of the blog to the look of the upcoming new version of Snet.
The image is taken from the classic publication 'Essay on the geology of the Lothians' written by Robert J. H. Cunnigham in 1838.
It's a colored drawing of the famous 'Hutton Section' at Salisbury Crags, Scotland where a prominent irregular junction between sandstone and dolerite can be admired. The discovery of this process -a magmatic intrusion- was very important for Hutton's theory of rock formations.
I don't know who the illustrated geologist is, but this wondering man just perfectly illustrates how science should work...