246 THE PLANTS OF THE GRÁMPIANS. 
which it grows has been since computed at 2,740 feet, and it 
would seem, from Mr. Brand's report of the locality, that it is 
very near the summit, and consequently about the medium 
height estimated by that gentleman. 
Carex aquatilis. Table land of Clova, say 2,700 or 3,000 
eet 
Sesleria cerulea. At about 2,600 feet on the mountains 
near Killin. (Probably half that elevation in Yorkshire.) 
Arenaria rubella. At 2,550 feet on Craigalleach, near 
Killin. (Near this locality, on Craigalleach, there is a large 
mass of rock projecting out so as to form a good shelter in 
stormy weather, and apparently much resorted to by sheep 
and alpine hares. Close about the sheltered spot where they 
tread, some plants grow which are frequent about inhabited 
places in the low country, but which are very rarely seen on 
the upper parts of the mountains; namely, Urtica dioica, 
Stellaria media, Poa trivialis, and Ranunculus repens. The 
same plants appear about the sheep-pens at 1,500 or 2,000 
feet of elevation, although scarcely ever seen on the sur- 
rounding moors at the same height. It may hence be infer- 
red that the want of manured soil, not the alpine climate, is 
the true cause of their usual absence from the higher moors 
and mountains.) 
Cherleria sedoides. Shortly above Loch-na-Cat, on Ben 
Lawers, at 2,500 or 2,600 feet; but not seen below 3,000 
feet on the grassy southern declivity of the same hill. (N.B. 
Macculloch says that the lake is 1,000 feet below the summit 
of Ben Lawers ; while my own calculation, on a very stormy 
day, made a diffesétice of 1,600 feet. "This is the widest dis- 
crepancy I have ever found between the results of my own 
observations with the sympiesometer, and those obtained by 
other persons. I feel convinced that Macculloch has under- 
estimated the distance from the summit. Whether I have 
erred on the other side, remains for some future observer to 
decide. Macculloch's estimate would make the lake 3,000 
feet above the sea; my Own reduces it to 2,400. Another 
observation, made among the rocks considerably above the 
