178 PROCEEDINGS OF THE 



uncommon in most wooded parts of Scotland and the north of 

 England. 



May 28th, 1867, 



Professor John Young in the chair. The following gentlemen 

 were elected corresponding members: — M. Auvert, Interne k 

 I'Hospice, Havre; Godfrey Howdtt, M.D., Melbourne; and the 

 Eev. Patrick Gordon, Duncansburgh Manse^ Fort- William. 



SPECIMENS EXHIBITED. 



Mr John Young exhibited a slab of shale, containing two speci- 

 mens of Archceocidaris Urei, in which the test or shell had been 

 preserved, with the long muricated spines attached in nearly their 

 natural position. These interesting and unique specimens of one 

 of our oldest Echinoderms were found recently by Mr Eraser 

 Christie, one of the members of the Glasgow Geological Society, at 

 Sculliongaur limestone quarries, on the north hill of Campsie, and 

 were presented by him to the Hunterian Museum. One of the 

 specimens showed thirty-seven of the long primary spines an-anged 

 round the test in a radiating form, besides numerous smaller 

 secondary spines wliich were arranged upon the outer row of 

 tubercles that border the larger plates, and which were only recently 

 known to have been borne by this particular species. Mr Young 

 also exhibited other specimens of Archmociclaris from diiferent 

 localities to show the condition in which their remains are generally 

 found scattered throughout our limestone strata. 



The Secretaiy exhibited a specimen of the Pomarine skua (Lestris 

 pomarinus), which had been caught alive, in a disabled state, near 

 Larkhall, Lanarkshire. He remarked that many of the specimens 

 mentioned by Yarrell and other writers as havhag occurred in the 

 British Islands, had been captured in a similar way. Mr Gray, 

 however, observed that although the pomarine skua was stated to 

 be a rare species, it was not so in many localities, especially the 

 shores of the eastern counties of Scotland, where it was frequently 

 recognised in autumn and winter chasing the smaller guUs. On 

 the west coast it had likewise been seen by Mr David Robertson, 

 at Cumbrae. 



PAPERS READ. 



I. — On Division of Scientific Labour. By Professor YouNG. 



