86 TRANSACTIONS AND PROCEEDINGS OF THE [ Sess. LXIX. 
the road we begin to ascend Meal Odhar, lying to the east. 
There is a steady rise of 1000 feet to the top of the ridge 
connecting it with Glas Maol. On the slopes and knolls there 
is any quantity of Loiseleuria procumbens; and among the 
heather the cloudberry, Rubus Chamemorus, is pientiful, as 
also Melampyrum sylvaticum, var. montanum, and Hypericum 
pulchrum. Cushions of Silene acaulis overhang the rocks 
and boulders. At the summit is the cairn in which the 
boundary lines of the three counties of Perth, Forfar, and 
Aberdeen meet. By the side of the fence, and on the 
Perthshire side of it, is a marsh in which these plants of 
Carex rariflora were gathered. This station, the only one in 
the county, was first discovered by Mr. Ewing. Crossing the 
ridge a well-marked sheep-track leads round the Corrie of Glas 
~~ Maol, where the Alpine species of the grasses Phiewm and 
Alopecurus used to be plentiful, but very few were visible 
last year. Near a spring Cochlearia Grenlandica was 
gathered, and very fine clumps of the lovely blue Veronica 
alpina were seen. In July last there were two large patches 
of snow in the Corrie. We walked this way six times, and 
on each occasion saw numbers of ptarmigan. In one covey 
there were twenty-two full-grown birds—a most unusual 
sight, as one seldom meets with more than two or four in the 
mountains. Climbing up the eastern side of the Corrie the 
ground is seen to be covered with Salix herbacea and 
Potentilla Sibbaldt. Tn a few minutes the bogs at the head 
of the famous glen are reached. Here carices are plentiful. 
Among them some curious forms of curta and echinata occur. 
Cares approximata was found here by Mr. Ewing some years 
ago. He also found a curious form of aquatilis. I have also 
seen it in situ. When growing, the stem has the appearance 
of a corkscrew. He named it “spiralis,” but it has not yet 
been admitted by the authorities. From the edge of the 
rocks a view of the whole glen can be had, with its amphi- 
theatre of precipices rising several hundred feet from the 
stream, which is the river Isla at its source. On the grassy 
places the herd of deer may generally be seen browsing, 
sometimes as many as 200 of them. 
The rocks at the head of the Corrie are composed of a 
slaty-black schist, which weathers very rapidly, and becomes 
like clay, resembling very closely the blaze from coal-pits. 
