198 PROCEEDINGS OF THE 



discovered by Mr Gray was next pointed out. He stated that 

 these fossils, which are exclusively characteristic of the silurian 

 period, are supposed by palaeontologists to have held an interme- 

 diate position between the Crinoids and Echinoderms, and that this 

 was the first notice of their occurrence in the silurian strata of the 

 Girvan district. 



PAPER READ. 



The Birds of lona and Mull. By Mr Henry D. Graham, 

 Corresponding Member, read by the Secretary. 



Before the close of the meeting the librarian announced several 

 additions to the library through the donations of members, among 

 which was a valuable quarto volume on lichens, " Lichenographia 

 Universalis," Acharius, 1810, the gift of Dr Colqulioun, the 

 President. 



January 28th, 1868. 

 Hugh Colquhoun, M.D., President, in the chair. The following 

 gentlemen were elected members : — Messrs John Turnbull, Mungo 

 C. Duff, resident; and W. C. Angus, Aberdeen, corresponding. 



SPECIMENS exhibited. 



Mr Edward E. Alston exhibited a specimen of the pine marten 

 (Maries abietum, Ray) from Inverness-shire; also, a beautiful pied 

 variety of the fieldfare (Turdus jnlaris, L.) from Lanarkshire — on 

 both of which he made a few remarks. 



Mr William Lorrain exhibited a specimen of the white-fronted 

 goose (Anser albifrons), which was shot lately in the Vale of 

 Leven, near Balloch. Mr Gray stated, with regard to this species, 

 that although it had been long looked upon as one of the rarer 

 British wild geese, it was now found to be tolerably numerous in 

 some of the western islands, especially Islay and neighbouring 

 isles. 



Dr Stirton exhibited specimens of Zygodon Stirtoni {Schimper), 

 from Ben Lomond in August, 1865 — a moss which, it Avould 

 appear, is comparatively common on rocks near the sea, as Mr 

 Wilson has reported it from the coast of Wales as well as Mr 

 Howie from near Elie, in Fifeshire. Its nearest ally is Zygodon 

 viridissimus, from which, however, it is sufficiently distinguished 



