378 Reports and Proceedings — 



becomes greater southwards, and the nodules have been derived 

 from older rocks. Similarly north of Lincolnshire, where the Spee- 

 ton series is overlapped, the nodules in the Red Chalk, marking the 

 horizon of the Carstone, have been derived from Oolitic rocks. 



In the South of England it would seem that equivalents of the 

 Speeton series reappear. The Atherfield clay contains an indigenous 

 Upper Speeton fauna, while a pebble-bed near the base of the Folke- 

 stone beds is described by Mr. Meyer as containing derived Oolitic 

 pebbles, and being probably the representative of the Upware de- 

 posit, and presumably, therefore, also of the Lincolnshire Carstone. 



4. " The Geology of Cape-Breton Island, Nova Scotia." By Edwin 

 Gilpin, Esq., Jun., A.M., F.R.S.C, Inspector H.M.'s Mines. 



After referring to previously published descriptions of Cape Breton 

 geology, the author stated that the various formations found in the 

 island had been thus classified by the officers of the Geological 

 Survey : — 



Pre-Cambrian (Laurentian) including ( J? e J^ 6 " 61 '^ , 



v ' ° \ ine Crystalline Limestone series. 



Lower Silurian, f Lower Coal-formation. 



Devonian. j ( Gypsiferous series. 



Carboniferous, including^ (Limestones, etc. 



| Millstone- Grit. 



^ Middle Coal-formation. 



He then proceeded to give an account of each system and its sub- 

 divisions in order, commencing with the most ancient and adding a 

 few detailed sections of the rocks belonging to some of the principal 

 series. He described the distribution and relations of the several 

 divisions. 



The paper concluded with a few notes on the superficial geology 

 of the island. There is a general absence of moi'aines and of the 

 fossiliferous Post-Pliocene marine clays of the Lower St. Lawrence. 

 The older beds are generally exposed, but deeper soils and deposits 

 with erratic boulders are found overlying the Carboniferous beds. 

 Marks of recent ice-action are found on the shores of some of the 

 lakes, and are due to the ice being driven by the wind. 



5. " On the Decapod Crustaceans of the Oxford Clay." By James 

 Carter, Esq., F.G.S., etc. 



The author commented on the paucity of these fossils as indicated 

 in British lists, only three or four species having hitherto been 

 recorded. 



The discovery of considerable numbers of Decapod Crustaceans 

 in the Oxford Clay of St. Ives has enabled the author to increase 

 the list materially. Many have been collected by Mr. George, of 

 Northampton. These fossils occur in the clay immediately beneath 

 the St. Ives rock, and therefore presumably in the uppermost zone 

 of the Oxford Clay. Many of the specimens are more or less 

 mutilated, but some fifteen or sixteen distinct species have been 

 made out. None of these have been recorded as British except 

 Eryma Babeaui, mentioned by Mr. Etheridge as having been found in 



