lxxvi PROCEEDINGS—PERTHSHIRE SOCIETY OF NATURAL SCIENCE. 
fell, namely those ending 19th May and 18th August. It will be 
noticed that the latter was the week which embraced the highest 
daily temperature. 
Very little thunder has been heard during the past summer, and 
there have been no wind-storms of any consequence. 
As regards the effects of these weather conditions on vegetation, 
it may be noted that the foliage on the deciduous trees was heavier 
than usual, and in autumn the change of tint and the fall of the 
leaf came rather suddenly. Most herbaceous plants, and especially 
grasses, were very luxuriant, and there was a considerable growth of 
young wood on trees and shrubs. Stone fruits, such as plums, and 
also small fruits, such as gooseberries and currants, were very 
abundant, but the crop of apples and pears was rather below the 
average. 
I now turn, in conclusion, to 
THE SUMMER EXCURSIONS OF 1900. 
Although the season, as I have said, was dull on the whole, yet 
fortunately the days fixed for the excursions were generally fine. 
The attendance was about the same as formerly. 
1. April 16, to St. Andrews. This excursion, which was held on 
the Spring Holiday, was conducted by Mr. J. B. Corr, of Dundee, 
who had delivered a course of lectures to us in the spring on 
Historical Geology. Most of the members of this class were present 
at the excursion, and also a small detachment of the Photographic 
Section of the Society. Mr. Corr sends the following report on the 
day’s proceedings :— 
“ On arriving at St. Andrews, the Geological party started at once 
for the £ Rock and Spindle, 5 accompanied by Mr. Berwick of 
Stravithie, who kindly consented to conduct us over the grounds. 
On reaching the Sandstone cliffs, a search was made for fossils, and 
several good specimens of Stigmaria ficoides were obtained. These 
fossils, and the thin seams of coal observed here and there inter- 
bedded between the sandstones, showed that we were dealing with 
rocks of the Carboniferous Period. On reaching the ‘ Rock and 
Spindle, 5 an examination was made of this famous outlier of Volcanic 
Agglomerate and Lava, On our return journey a visit was paid to 
the Marine Laboratory of the St. Andrews University, where we had 
an opportunity of examining the collection of specimens illustrating 
the Marine Zoology of St. Andrews Bay. Leaving the Marine 
Laboratory, we directed our steps towards the University, and were 
admitted to the Museum. Here we spent a considerable time in 
looking over the extensive collections of Zoological, Geological, and 
Mineral Specimens. The Old Red Sandstone Fishes from Dura 
Den were greatly admired, while the numerous cases of fossils and 
minerals in the Geological Department received a considerable 
amount of attention. 
“ Having satisfied, as far as time would permit, our thirst for 
knowledge in the realms of Palaeontology and Petrology, we 
