PRESIDENTS ADDRESS. O 



Cilurnum. The ruined Hjpocaust ; ^rarium ; tlie foundations 

 of the ancient bridge, over the North Tyne ; the situation of the 

 Roman Cemetery; and the bold and extensive outline of the Station 

 itself, as well as the valuable collection of sculptured and inscribed 

 stones, carefully preserved by Mr. Clayton, were all attentively 

 noted. For an accurate account of this remarkable station, and 

 its memorabilia, I would refer to the Rev. J. C. Bruce's interesting 

 and erudite work, "On the Barrier of the lower Isthmus," recently 

 published. From Chesters, the gratified party took their way 

 over the Common, to Haughton Castle; and after having examined 

 the embattled gateway and exterior, were politely conducted over 

 the interior, by the lady resident in that edifice. Without doubt 

 this castle is one of the most curious specimens of mediaeval archi- 

 tecture that can be seen. It impresses the spectator with the idea 

 of its being an ecclesiastical edifice, encased within a feudal castle ; 

 and, by modern hands, converted into a habitable and very 

 delightful mansion. It would form an admirable study for any 

 of our architectural or antiquarian members, and a good subject 

 of a paper for our Transactions. Revolving in their minds the 

 probable history of this castle, the party were ferried over the 

 river to Barwesford, on their way to Gunnerton Crags, a minor 

 outbasseting of the great whin-sill, and a continuation, to the 

 north-east, of the range from Sewingshields, Crag Lough, &c. 

 Here some rather good botanizing ground exists. Hence the party 

 returned through Humshaugh to Fourstones, to dine, and to listen 

 to the reading of an abstract of a paper by Mr. Albany Hancock 

 and myself, on the anatomy of Doris, a Nudibranchiate Mollusk. 

 The chief feature, in this paper, was the discovery of a sympa- 

 thetic or ganglionic system of nerves in Doris and other Mollusks, 

 and of other organs in Doris hitherto undescribed. The following 

 plants were obtained during the day: Dianthus deltoides, Geranium 

 columhinum, G. lucidum, Spiraea Filipendida, Rosa ruhiginosa, 

 Scabiosa columbaria, Geniiana campestris. Origanum vulgare, 

 Cynoglossum officinale, Allium vineale, probably the var. compac- 

 tum, and Asplenium Adiantum-nigrum. Daucus carota was found, 

 in great profusion, in a field near Walwick Grange. The following 

 new members were enrolled: — The Rev. H. B. Tristram, M.A., 



