284 TRANSACTIONS, NATURAL HISTORY SOCIETY OF GLASGOW. 
neighbourhood of the railway-line. Among others, the following 
were seen:—Saxifraga aizoides, Linn., Pinguicula vulgaris, 
Linn., Gymnadenia conopsea, R. Br., and Senecio viscosus, Linn., 
the last named having been brought probably in ballast, 
A Walnut tree (near the church), and some fine Ash trees, were 
seen at Arrochar. The largest Ash, opposite one of the hotels, 
was measured on 9th April last, and found to have a girth of 
trunk of 15 feet 2 inches at 4 feet from the ground on the upper 
side. Wewere then told that, by the terms of the feu or lease 
of the hotel, the tenant is prohibited from interfering with it. 
As yet we have not found any Ash tree in the West country that 
exceeds it in size. 
In Arrochar, in the possession of Mr. Lindsay, bootmaker, 
a young Peregrine Falcon (Malco peregrinus, Tunstall), about 
a month old, was seen. It was got, about a fortnight before, 
from a nest on a cliff about 100 feet high, called the Eagle’s 
Rock, above Loch Sloy. Another young Falcon was killed by 
falling from the nest. Mr. Lindsay stated that among the hills 
in the neighbourhood a Buzzard (Buteo vulgaris, Leach) had 
nested this year, and that six Eagles had been seen. Two had 
been shot, but four still remained. 
AvcHINCRUIVE, 6th August, 1898.—A small party visited 
Auchincruive on the afternoon of this date. Mr. John Smith, 
who acted as conductor, supplied the report which follows: — 
“ Dolerite, much decomposed, covers a large area in the neigh- 
bourhood of Auchincruive. A trap dyke is seen crossing the Ayr 
Water a short distance above the house. Further up the Water, cliffs 
of thin-bedded Carboniferous sandstones and shales are seen, with 
two thin coal seams. An old river-channel has been cut through 
these strata, and it is now filled with drift. Whether it is an old 
course of the Ayr, or merely that of a side stream, could not be 
made out. It appears to be too narrow to have been caused by 
the Ayr in pre-drift times, cutting sideways into the rocks, as the 
Ayr here makes long curving sweeps. There is no stream within 
a considerable distance of the old channel at the present time. 
We passed down the right bank of the Ayr Water, where beds 
of rusty gravel, covered by alluvium, are exposed, and river 

