390 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [June 18, 



5. On the Fossils found in the Chalk-flints and Greensand of 

 Aberdeenshire. By J. W. Salter, Esq., F.G.S. 



[Abstract.] 



(The publication of this paper is postponed.) 



A notice of the occurrence of chalk-flints and greensand in Aber- 

 deenshire* has been published by W. Ferguson, Esq., F.G.S., in the 

 Proceed. Glasgow Phil. Soc. vol. iii. p. 33, and the Phil. Mag. 1850, 

 p. 430, and some of the facts had been previously noticed ; but no 

 lists of the fossils had been given. 



This communication showed the presence of characteristic Upper 

 Greensand fossils in the low ground at Moreseat : Thetis minora A?'ca 

 carinata, Pinna tetraffona, and Galerites castanea ; with other 

 species, some of them new. 



Among the Chalk fossils, Lima elegans of Nilsson is a new fossil 

 to Britain, and is found with the ordinary Inocerami and Echinites 

 of the Chalk in the rolled flints which form terraces round the hills 

 in Aberdeenshire. The probable continuity, therefore, of these beds 

 with those of the south of Sweden, where the same order of suc- 

 cession prevails, is inferred ; the extension of the Upper Greensand 

 so far north is a point of much interest. 



6. On the Correlation of the Middle Eocene Tertiaries 



o/ England, France, «7ic? Belgium. 



By J. Prestwich, Esq., F.R.S., Treas. G.S. 



[Abstract.] 



(The publication of this paper is postponed.) 



In a former paper the author had shown the correlation of the 

 strata beneath the Bracklesham series in England, the Calcaire 

 grossier and Lits Coquilliers in France, and the Upper Ypresian 

 system in Belgium, and had proposed to designate that lower series 

 the " London Tertiary Group," from the circumstance of these strata 

 attaining the largest and most distinct development in the English 

 area. In the present paper Mr. Prestwich entered into an account of 

 the structures of the deposits next above. In France this is the Cal- 

 caire grossier y which the French geologists have divided into four 

 stages: — 1. a series of white and light-green marls, apparently of 

 freshwater origin ; 2. an upper divison, of calcareous rock, harder 

 and more flaggy than the next below, and rich in Miliolites and Ceri- 

 thium, mixed with a few freshwater shells and the remains of plants 

 and land -animals ; 3. a middle one, of a calcareous freestone abound- 

 ing in marine organic remains (Grignon, Courtagnon, and other cele- 

 brated localities being in beds of this zone) ; and 4. a lower one of green 

 sands, with few fossils. Each division attains at places a thickness of 

 30 to 40 feet, but the lower ones are thickest in the centre and west 



* It appears not very satisfactorily proved that the chalk and greensand exist 

 in situ in this locality ; Proc. Glasgow Phil. Soc. vol. iii. p. 44 et seq. — Ed. 



