4o GUIDE TO LOCALITIES 



Gentilly and Arcueil.— The quarries in the Calcaire 

 Grossier at these locaHties have been referred to.* The Carriere 

 Robine, near the Porte de Gentilly and the Carrieres Lavenand, 

 Nos. I and 2, are fine exposures. The latter quarry is close to 

 Arcueil. 



GRIGNON CENTRE.— (Nineteen miles W. of Paris.) 



Leaving Paris and its immediate neighbourhood, one of the 

 best centres for the fossils of the Calcaire Grossier is that of 

 Grignon. 



From Paris (Gare Montparnasse), take train to Plaisir-Grignon. 

 There are two inns in the village ; but if better accommodation is 

 required, Versailles may be made the headquarters, though it is not 

 so convenient. 



Grignon. — The celebrated section at this village t is situated 

 in the grounds of the Ecole d'Agriculture, and permission is 

 required from the Director of the school to examine the coqui/Iage. 

 At the school, the fine collection of Calcaire Grossier fossils 

 should not be missed. 



Thiverval. — The quarry at this place, just outside, and on 

 the west of the Park of Grignon, is in Lower Calcaire Grossier, 

 with Venericardia plmiicosta, and sharks' teeth. 



La Frileuse. — On the road to the farm of that name, about 

 one mile from Thiverval, is a very small roadside section in Upper 

 Calcaire Grossier ; Cerithium scrratum^ Conorbis liticolaiiis and 

 Bayania lactea are plentiful. 



The high ground in this neighbourhood is generally capped 

 with Upper Calcaire Grossier, and fossils may be obtained from 

 several small exposures ; Mesalia fasciata occurs, in varied forms, 

 in the harder beds. 



La Ferme de l'Orme.- -'Pake train or 'bus fi"om Grignon to 

 Neauphle-le-Chateau, and walk thence through Neauphle-le-Vieux, 

 about 3 1 miles N.W., on the road to Septeuil, to the farm. There 

 are two sections in the fields, and permission should be obtained 

 from the proprietor to examine them. The U[iper and Middle 



Ante, p. 20. 



t See p. 22 



