Geological Congress in Paris. 379 



exceedingly well made. The " Livret-Guide " forms a bulkj^ octavo 

 volume of over 900 pages, with no less than 372 beautiful text- 

 figures and 25 plates (geological maps, sections, views, etc.). 



The introduction contains notices of the geological, mineralogical, 

 and palseoiitological museums and collections of Paris — Museum 

 d'Histoire Naturelle, Ecole des Mines, Sorbonne, Ecole Libre des 

 Hautes Etudes Scientifiques, Collection Pellat — drawn up by the 

 respective keepers. 



The choice of the regions to be visited has been made in such 

 a manner that the Guide contains, as a matter of fact, a description 

 of all the ' terrains ' of France, thus giving a summary of our actual 

 knowledge of the detailed geology of the country. So that this book 

 will be welcome not only to the members of the Congress, whether 

 excursionists or not, but for several years to come it will remain 

 a useful geological ' Baedeker ' of France. 



There will be two categories of excursions, 'Excursions generales*^ 

 and ' Excursions speciales.' In the latter the numbers are limited 

 to twenty, being intended for specialists only, who are supposed to 

 be at the same time good walkers and not to consider comfort as the 

 primary condition of a scientific excursion. The following are the 

 'Excursions speciales ' : — 



August 31 to September 9: Alps of the Dauphiue and Mont-Blanc 



(Directors, MM. Marcel Bertrand and W. Kilian). 

 August 6 to 14: : Aquitaine (Dir., M. Ph. Glangeaud). 

 August 6 to 14 : Ardennes (Dir., M. Gosselet). 

 August 30 to September 6 : Tertiary basins of the Ehone 



(Dir., M. Deperet). 

 August 4 to 14 : Bretagne (Dir., M. Ch. Barrels). 

 August 29 to September 4 : Caves of the Causses 



(Dir., M. E. Martel). 

 August 3 to 9 : Gironde (Dir., M. E. Fallot). 

 August 30 to September 12 : La Mure, Devoluy, Diois, Valentinois 



(Directors, MM. Lory, Paquier, Sayn). 

 August 9 to 14 : Mayenne (Dir., M. D. P. Oehlert). 

 August 11 to 14: Miocene of Touraine (Dir., M. G. Dollfus). 

 August 29 to September 6 : Montagne-Noire (Dir., M. Bergeron). 

 August 29 to September G : Mont-Dore (Dir., M. Michel Levy). 

 September 11 to 20: Mont-Ventoux and Montague de Lure 



(Directors, MM. W. Kilian and Leenhardt). 

 August 29 to September 8 : Morvan (Directors, MM. Velain, Peron, 



and Breon). 

 August 31 to September 9 : Pelvoux and Briangonnais 



(Dir., M. P. Termier). 

 September 3 to 8 : Picardie (Directors, MM. Gosselet, Ladriere, 



and Cayeux). 

 September 23 to October 2 : Provence (Directors, MM. IMarcel 



Bertrand, Vasseur, and Ziircher). 

 August 4 to 14: Pyrenees— crystalline rocks (Dir., M. A. Lacroix). 

 August 30 to September 8 : Pyrenees — sedimentary formations 



(Dir., M. L. Carez). 



