Ix PROCEEDINGS OF THE 



throughout their whole length and somewhat flattened, afford- 

 ing an example of fasciation. 



An exhibition of microscopic objects afterwards took place, 

 an attractive feature of which was a Lantern Microscope with 

 lime-light, shown by Mr. John Trotter. A large number of 

 objects were exhibited, greatly magnified, on a white screen; 

 and the ease with which the minute details of animal and 

 vegetable structures could thus be examined afforded much 

 satisfaction to all present. 



28th July, 



Mr. R. Turner, Vice-President, in the Chair. 



Mr. D. A. Boyd reported on an excursion made to Thornlie- 

 bank on 1st inst. Polemonium cceruleuin, L., was found grow- 

 ing abundantly, along with a white variety, on the banks of a 

 dam at the head of the Rouken Glen ; and Arena flavescens, L., 

 a grass which is rare in the district, was also obtained in the 

 glen. Specimens of Succinea putris, L., and Planorhis contortuSj 

 L., were collected by Mr. James Steel at the side of the dam. 



Mr. Richard M'Kay reported on an excursion made to Ayr 

 on 25th inst. The sea-shore below the town was examined for 

 a distance of about two miles, but was found to be rather 

 barren of shore plants. Among the plants collected were 

 Trifoliuin arvense, L., Eryngiiim niaritiimun, L., Convolvulus 

 arvensis, L., Campanula Tr^acJielium, L., and Salsola Kali, L. 

 Allium vineale, L., was found growing on the banks of the 

 River Doon. 



Dr. James Stirton, F.L.S., President, reported on an alpine 

 excursion to the Killin district during the Glasgow Fair 

 Holidays, when many of the flowering-plants, mosses, &c., for 

 which the district is famed, were observed on Ben Lawers and 

 Ben Challum, the mountains visited. He referred especially to 

 a visit he had made to Creag Mor, between the head of Glen 

 Lochay and Glen Lyon, when he was accompanied by Mr. James 

 M'Andrew, New Galloway. There are two corries shown on the 

 Ordnance Survey Map, neither of which can be ascertained to 

 have been explored by botanists. Of these the more distant 

 from Killin is visible during the ascent of Ben Challum; while 

 the nearer, which extends for a distance of about a mile and a 

 half, runs in a south-easterly direction, thus corresponding in 

 aspect with both the corries on Ben Lawers. The latter was 

 the corry visited by Dr. Stirton and Mr. M 'Andrew. At first 

 the appearance of the rocks seemed directly against the 

 supposition of such plants being found as one might expect 

 to meet with on Ben Lawers, the formation being of a type 

 less favourable to vegetation ; but after having ascended the 



