PROCEEDINGS-PERTHSHIRE SOCIETY OF NATURAL SCIENCE. XXXL11 
hill of conglomerate, but it is on the other side of the road from the 
well marked on the map. It is probably, however, the same, though 
the outlet may have been shifted. Dr. White had been interested in 
this well when we visited it the previous autumn, and had afterwards 
made some inquiry as to why it was called after St. Patrick, but he 
told me that he could not find any information regarding it. 
“ In driving from St. Patrick’s Well back to Comrie the road 
passes through a cutting in a band of conglomerate which rises up 
in a line of rugged prominences. This outcrop, when approached 
from the south, puzzled the geologists of the party, who maintained 
that it must mark the occurrence of beds of volcanic material, while 
the botanists (who had been there before!) held that it was con¬ 
glomerate. A closer examination of the rock in the cutting showed 
that the latter were correct, although the former had the consolation 
of pointing out that the conglomerate was so fused and altered as to 
have become as hard as a volcanic rock, and hence to have assumed 
a similar outline ! ” 
On reaching Comrie we had still a good part of the day before us 
and we therefore drove to visit the “ Devil’s Cauldron ” in Glen Led- 
nock. What havoc had been wrought here since our visit the pre¬ 
vious autumn ! Fallen trees almost blocked up the footpaths and 
rendered it a work of no small labour to reach the fall. The wood 
through which we had climbed to reach the Melville Monument 
existed now only as a mass of ruin. It was sad to see, and gave a 
vivid idea of the terrible force of the hurricane which had thus marred 
the beauty of the scene. 
“ In Glen Lednock a visit was paid to a quarry in Laggan Wood, 
where another of the numerous Tertiary dykes of this district is ex¬ 
posed. This one, however, is of interest as being intrusive in the 
Clay Slate of the Highland Metamorphic Series, whereas most of 
those previously visited by the Society have cut through rocks of Old 
Red Sandstone age. The contact metamorphism was very marked, 
the clay slate on either side having been baked for a thickness of 
about two inches, so that when exposed to the weather it crumbled 
down into small fragments.” 
On leaving the quarry we returned to Comrie, and thence by 
train to Perth. 
On Saturday, 30th June, the excursion was to Tentsmuir. Jour¬ 
neying by train to Leuchars we were joined at Dundee by a number 
of students belonging to the botanical class of Professor Geddes in 
University College, Dundee. Passing through Leuchars we stopped 
to admire the fine old Parish Church, the oldest portion of which is 
supposed to date from the beginning of the twelfth century. The 
church also recalls the name of one of its former ministers, the 
famous Alexander Henderson, leader of the Covenanters, and 
Moderator of the famous Assembly of 1638, which made such short 
work of prelates and prelacy in Scotland. A pleasant walk through 
the fields then led to Eden Mouth, where the party separated. 
A few members went off to make observations on the many species 
of sea-birds which frequent Tentsmuir, and especially to take note 
c 
