Notices of Memoirs — Papers read at British Association. 473 



tive American species, CaJapcpcia cribriformis, Nicli., and Columnaria 

 alveolafa, Goldf., make tlieir appearance in the Siberian beds, though 

 they have not as yet been recognized in the intermediate Silurian 

 areas of Western Europe. 



The second paper contains a detailed description of the Silurian 

 strata displayed in the Great and Small Carls, two small islands 

 situated within a short distance of the west coast of the Isle of 

 Gotland. The beds consist of an underlying series of soft greyish 

 shales, which in places have been remarkably contorted, and their 

 upper surfaces denuded, previous to the deposition of the limestone 

 strata which cover them. The limestones are distinguished by 

 being in many instances almost entirely composed of Corals and 

 Stromatoporas, and some of the beds are made up of tightly packed 

 individuals of but a single species, whilst in others two or three 

 species have lived and died together, so as to form beds which reach 

 a thickness of 16 feet. Professor Lindstrom gives a list of the 

 fossils from these islands, and compares them with those met with 

 in similar strata on the Isle of Gotland. The characters of a new 

 genus of corals, Helminthidium, are also defined. In an appendix 

 he refers to the descriptions of the corals from these islands given 

 by Dr. W. Dybowski in his " Monographie der Zoantharia Sclero- 

 dermata rugosa aus der Silurformatiou Estlands, Nord-Livlands und 

 der Insel Gotland," and shows pretty conclusively that the 12 

 species therein described, 8 as new, may be reduced to 6, and these 

 were all previously known and described. G. J. H. 



11. — British Association for the Advancksient of Science, 



Fifty-Second Meeting, Southampton, 23rd August, 1882. 



[C. W. Siemens, Esq., D.C.L., LL.D., F.R.S., etc., Fresideni.] 



A. — Titles of Papers Eead in Section C. (Geology). 



President: Robekt Etheridge, Esq., F.R.S., F.G.S., etc. 



The President's Address. 



Professor J. Preshoich, M.A., F.B.S. — Notes relating to the Drift 



Phenomena of Hampshire: — 1. Boulders. Hayling Island; 2. 



Chert debris in the Gravel ; 3. Elephant Bed, Freshwater Gate. 

 H. B. Woodioard. — Notes on the Bure Valley Beds and the Westle- 



ton Beds. 

 Professor V. Ball, M.A., F.B.S.— On the Sources of the Salt Supply 



of India. 

 Professor W. G. Williamson, F.B.S. , and W. Cash. — Preliminary 



Report on the Flora of the " Halifax Hard Bed," Lower Coal 



Measures. 

 C. K De Bancs. — On the Iron and Lead Measures of Tynehead, 



Alston Moor. 

 W. Keeping, M.A. — On the Geology of Cardigan Town. 

 W. Pengelhj, F.E.S. — On the Post-Miocene Deposits of the Bovey 



Basin, South Devon. 

 E. Wethered. — On the Origin of the Hgematite Deposits in the Car- 

 boniferous Limestone of South Wales. 



