860; Plants observed by Dr Graham during 



limestone. Coal, however, is there of very rare occurrence, and 

 when disclosed is of a very indifferent quality ; and the author 

 infers, that the lower part of the series in the county of Clare is 

 comparatively poor in this mineral ; he, however, suggests that 

 the best chances of discovering valuable seams must lie in the 

 elevated regions of Mount CuUun, where, if coal be found, the 

 beds being nearly horizontal, it might be worked with advan- 

 tage. 



The Memoir concludes with some observations on the distri- 

 bution of diluvial matter in the south of Ireland. 



1. Boulders, gravel and sand, derived from the transition series, 

 are lodged along the borders and sides of the mountains in Kerry. 



2. In a small district of Limerick and Tipperary, situated 

 between the Gaultees and SUeve-na-much, the rolled debris con- 

 sist not only of portions of the contiguous rocks, but contain 

 also porphyry, which is not to be found in situations near the 

 vicinity of Pallis hill. 



3. In the peninsula of Renville, near Galway, the surface of 

 the carboniferous limestone is strewed over with numerous boul- 

 ders of red and grey granite, syenite, greenstone, and sandstone, 

 which must apparently have been conveyed from the opposite 

 side of the bay of Galway. 



Notice of Plants observed in an Excursion made by Dr Graham 

 with part of his Botanical Pupils, accompanied by a Jew 

 Friends, in August last. 



The party proceeded in two divisions to Castleton of Brae- 

 mar ; the one, landing at Aberdeen from the steam-boat, walked 

 up the Dee ; the other, proceeding by the coach to Blair Athole, 

 walked through Glen Tilt. We met at Castleton on the 3d 

 of August. From this point we walked to Ben-na^Buird, Ben- 

 na-muic-dui. Glen Callader, Glen Candlich, and over Loch-na- 

 gar to Clova. From Clova we walked to the Glen of the Dole, 

 and then the greater part returned to Edinburgh, others di- 

 verging in differeat directions with other pursuits. The whole 

 time occupied, including the days of departure and return, 

 was eleven days. The weather being wet, though, with excep- 



