426 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [June 16. 



10. On the Meaning of the term "Silurian System," as adopted 

 by Geologists in various countries during the last ten years. By 

 Sir R. I. MuRCHisoN, F.R.S., G.S. &c. 



[This paper was printed in No. 31. p. 173.] 



11. On AiR-BUBBLE Marks, whether they are distinguishable from 

 Rain-marks. By M. Ed. Desor. 



[This paper was withdrawn by permission of the Council.] 



12. On the Sections of the Lower Lias at Mickleton Tunnel 

 awe? Aston. By G. E. Gavey, Esq., F.G.S. 



[The publication of this paper is deferred.] 



13. On Foot-tracks /ow?^c? in the New Red Sandstone at Lymm, 

 Cheshire. By Robert Rawlinson, Esq. 



[Communicated by the Right Hon. the Earl of EUesmere, F.G.S.] 



[The publication of this paper is deferred.] 



