^2 GUIDE TO LOCALITIES 



MoRTEFONTAiNE. — The fossilifcrous sand-pit is within half-a- 

 mile north-west of the village. 



Le Guepelle. — This is one of the richest fossiliferous sections 

 of the Sables Moyens in the Paris basin,* and is situated on the 

 east side of the route nationak to Senlis, about one mile south of 

 Survilliers station. There is no hamlet of the name, which is 

 derived from a farm. The section is a large one, on the road-side, 

 not far from an inn. 



La Chapelle-en-Serval. — About one and a-half miles to 

 the south-east of La Chapelle, in a wood, is the quarry, rich in 

 Sables Moyens fossils, before referred to.f 



Butte-aux-Clochettes. — Near the farm St. Marguerite, in 

 the thick part of the wood Haute Chaume, is an exposure of the 

 sandy and very fossiliferous Sables Moyens (upper horizon). 



St. Sulpice. — Near Ver. Some small exposures in the park 

 are exceedingly fossiliferous, A farm labourer can be obtained to 

 show the exact spot, which is not otherwise easily found. 



Ver. — This very fine section already described^ has a rich 

 assemblage of fossils. 



Ermenonville. — ^The Sables Moyens of this neighbourhood 

 have furnished many fine species, and small exposures can occa- 

 sionally be found in rabbit-burrows and ditches, especially on the 

 right bank of the river Nonette, nearly opposite the tomb of Jean 

 Jacques Rousseau. 



Senlis. — In the neighbourhood of this town several fossili- 

 ferous pits are open in the Sables Moyens and Calcaire 

 Grossier. 



PONT-SAINTE-MAXENCE, CUISE, SOISSONS, &c. 



The next district to claim our attention is more extensive 

 and its important exposures much scattered. It is, therefore, 

 most convenient to- make several stopping places. 



Pont-Sainte-Maxence. — (Thirty-four miles north-east of 

 Paris.) May be reached from Survilliers (after studying the 

 sections in the neighbourhood of Mortefontaine) or direct from 

 Paris (Gare du Nord). 



Here the Calcaire Grossier is, as already mentioned, dolomitic§ 

 and is worked, among other places, at Minbertin, half-a-mile south 

 of Pont-St.-Maxence. One mile north of the latter is 



Sarron. — The Lignites of the Soissonnais are exposed half-a- 

 mile north of the village, in a cendricre close to the railway. 

 There are two sections, both fossiliferous, with Melania imjidiiata, 

 and other familiar Woolwich and Reading species. 



Leaving Pont-Sainte-Maxence, take train via Compiegne to 



* See detailed section, atite, p. 29. 

 t Ante, p. 28. X Ante, p. 27. § Ante, p. 17. 



