Proceedings. Ixxiii. 



received from the Geologists' Association inviting their 

 presence at two excursions, one of which, under the direction 

 of Mr. Logan Lobley, to the Addington and Shirley district, 

 promised to be of great interest. The paper for next meeting 

 would be " On the Anatomy of the Crayfish," by Mr. J. S. 

 Johnson. 



Mr. W. ToPLEY, F.G.S. (Geological Survey of England), 

 delivered his " Notes on the Geology and Physical Geography 

 of the Weald," which he illustrated by numerous maps, 

 diagrams and photographs. Mr. Topley referred to the past 

 and present definitions of the term Weald, and the apparent 

 method which had regulated the division and positions of the 

 parishes lying around the Weald, and then went at length into 

 the formation and the position of the different beds of clay, 

 &c., and the inferences to be drawn therefrom, stating, in the 

 course of his remarks, that it was beyond all doubt — how, he 

 had not the time to state — that at one time a vast continent 

 must have occupied the area which England now takes, and 

 stretched far out into the Atlantic. 



After a short discussion, in which the Chairman and two 

 members joined, a hearty vote of thanks was passed to Mr. 

 Topley for his very interesting lecture. 



A list of exhibits is appended : — W. Low Serjeant, Alcyon- 

 ella Fungosa, just emerging from the statoblast ; E. B. 

 Sturge, Fructification of Fern ; K. McKean, Larva of Culex 

 pipiens (first stage), in fluid ; Ed. Lovett, Specimens of 

 Wealden Rbcks and the Hastings beds, also living specimen 

 of Lacerta viridis, from Jersey; J. S. Johnson, Olfactory 

 appendages in antennae of Crayfish, also Lepisma saccharina ; 

 H. M. Klaassen, Piece of Sandstone from Weald, showing 

 ripple marks ; A. W. Rich, Living specimen of a South 

 Australian Lizard. Mr. Flower brought for distribution a box 

 of hybernating Helix Pomatia, with operculum attached. 



Excursion of the Geologists' Association and of the 



Club, to Croydon, Shirley and Addington, 



Saturday, May 7TH, 1881. 



Directors :--J. Logan Lobley, Esq., F.G.S. ; John Flower, Esq., 

 M.A.,F.Z.S.; and H. M. Klaassen, Esq., F.G.S. 



At East Croydon station the members of the Association 

 were joined by a number of the members of the Club. Onleaving 

 the station, which stands at the extreme eastern edge of the 

 bed of valley gravel which was visited by the Club and the 

 Association, on June 19, 1880, the party proceeded eastward 

 along the Upper Addiscombe Road. The sands of the Oldhaven 



