NATURAL HISTORY SOCIETY OF GLASGOW. 7 



condition, and quite free from the matrix. They are mostly of a 

 comb-]ike form, being serrated along one of the sides, as in a comb, 

 with a row of teeth, often of unequal length and stoutness. Some, 

 however, consist of single, round, hollow, conical teeth, tipped 

 with a layer of clear enamel at their points. Few of the organisms 

 exceed an eighth of an inch in length, many of them being 

 much smaller. In this respect they agree with the Conodonts 

 found in other countries. In the upper limestone series at Glen- 

 cart, near Dairy, as well as at one or two other localities of the 

 same district, Mr. Smith has discovered, along with the Cono- 

 donts, a new group of fossil sponges belonging to a different 

 group from that of the Hyalonema, which he found in the lower 

 limestone series at Cunningham Baiclland, near Dairy. The 

 silicious spicules of this new group of sponges from the upper 

 limestone are of various types, as might be seen from the specimens 

 exhibited; they are also all in excellent preservation. At present 

 these forms were being examined by Professor Young and Mr. 

 Young, who intend to bring them before the Society at a future 

 meeting. In this same deposit Mr. Smith has also found an 

 interesting group of small forms of molluscs, many of which are 

 in a most beautiful state of preservation. Some of the univalve or 

 spiral shells have their mouths quite entire, and several of them 

 are of species not formerly recorded from the Carboniferous strata 

 of the West of Scotland. The limestone in which the varied 

 groups of organisms here recorded are found, is a hard, compact, 

 fine-grained rock of a greyish colour. At its outcrop at Glencart 

 the rock is eroded by weathering into curious nodular-shaped 

 cavities of varying size, and it is from the rotted limestone found 

 filling these cavities that the Conodonts and other organisms are 

 obtained by washing. 



October 30th, 1878. 



Mr. John Young, F.G-.S., Vice-President, in the chair. 



Messrs. Edward Laurie Fogo and Thomas King were elected 

 ordinary members of the Society. 



The Chairman having referred to the death of Dr. Hugh 

 Colquhoun, an honorary member of the Society, it was unani- 

 mously agreed, on the motion of Mr. James B. Murdoch, that a 



