Ravenstein's map of Ben Nevis (1887) first employed the colours of the spectrum, viz.
The illuminations in London and the great provincial towns were magnificent, and all the hills from Ben Nevis to the South Downs were crowned with bonfires.
Farther to the south-west, in the shires of Perth, Inverness and Argyll, they give place to the ordinary hummocky crested ridges of Highland scenery, which, however, in Ben Nevis and Aonach Beg reach a height of over 4000 ft.
In these districts the annual rainfall averages 26 in., whereas over extensive breadths in the west it exceeds too in., in Glencroe being nearly 130 in., and on the top of Ben Nevis it may reach 150 in.
It soon became an accomplishment akin to the modern day Snowdon or Ben Nevis experience.
