"On us who saw these phenomena for the first time, the impression made will not easily be forgotten... The mind seemed to grow giddy looking so far into the aby

"On us who saw these phenomena for the first time, the impression made will not easily be forgotten... The mind seemed to grow giddy looking so far into the abyss of time..." John Playfair on the work of his friend the geologist James Hutton who first realised the incredible age of geological features. https://en.wikipedia.org/wiki/James_Hutton https://en.wikipedia.org/wiki/James_Hutton Of course, Playfair lived in Edinburgh - "this dream in masonry and living rock".