FLORA OF FORFARSHIRE. 
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Reeky Linn, on the northern bank, rather plentiful, but 
not extending over a large space. 
Near the Sloughs (or Slugs) of Auchrannie, also on the 
right bank of the Isla, where the river debouches from the 
ravine, and near the Kahns of Airlie, Rev. J. S. Barty. In 
the New Statistical Account of Forfarshire , it is mentioned 
as occurring in the parishes of Glammis and Kirkden, but 
no stations are given. 
The Den of Airlie is not only interesting on account of its 
diversified and romantic scenery, and the historical associa- 
tions connected with its venerable castle, but to the botanist 
is a perfect treasury, from the profusion of rare and beautiful 
plants it contains. And while he threads the mazes of its 
leafy shades, or scrambles among its rocky banks and braes, 
he feels an additional charm from the recollection that it has 
been the nursery of botanical enthusiasm, for there Don 
made some of his earliest discoveries, and Drummond, with 
his keen, cryptogamic eye, explored its nooks and crannies, 
and brought to light many hidden beauties. 
The Den is a deep winding ravine, about four miles in 
length, through which the Isla descends from Glenisla into 
Strathmore. Most of it is richly wooded, and the rocks in 
many places rise to a great height, and, from their inaccessi- 
bility, afford safe nestling places to various hawks and other 
birds of prey. 
The Melgum, rich in cascade-scenery, desends from Lin- 
trathen through a smaller ravine, and joins the Isla at the 
base of the bold promontory on which the castle stands. 
Below this, as well as at the head of the Den, many beauti- 
ful walks have been formed among the woods, from which 
the most interesting features of the scenery can be viewed to 
advantage. 
The Isla forms, in its course through this gorge, a number 
of waterfalls, the most considerable of which is the Reeky 
Linn at the top of the Den, near to which the Orobus sylva- 
ticus grows. In this noble fall, the whole waters of the Isla 
are precipitated into the Den in three magnificent leaps. 
“ The noise of the falling torrent is heard at some distance, 
and a misty vapour continually arises, like a smoke ( Scottice , 
reek), hence the name, caused by a jutting rock, at the base 
of the cliffs, obstructing the force of the waters ere they have 
finally reached the bottom of the dark abyss below. The 
rocky steeps around are bright with a gay garniture of ver- 
