1 882.] Mineralogy. 103 1 



to its former level, and probably some amount of permanent op- 

 pression remained. In the same magazine, Mr. Woodward de- 

 scribes five species of phyllopod Crustacea from shields found in 

 the Upper Devonian of the Eifel, and one from the Wenlock 

 shale of South Wales ; Mr. W. H. Twelvetrees has some notes 

 upon the geology of the country at the base of the southwest 

 slopes of the Urals ; Mr. S. V. Wood continues his argument for 

 the formation of the Loess from the sliding into the valleys of 

 the thawed soil-cap annually left unprotected upon the heights: 

 Mr. Hovvorth adduces the evidence of the valley terraces in favor 



of th 



e occurre 



;nce of a 



great post-glacial 



flood; 



and Mr. Fli 



•<hx 



contii 



ill :s his 1 



listory of 



meteorites. 



-A 



mong til 



e numerous 



to- 





ing and v 



is contained 





the Bull. 



stinoftheG 





logic; 



il Societ\ 



r of Franc 



:e, during the 



ye; 



ar 1881, 



are the foil, 





ing: 



On the ir 



nportance 



of the central 



c ! i 



amber 



f the Numr 



ri 11- 





bv M. da 



la Harpe 



; On the Mic; 





ous schi 



sts of the ei 



ivi- 





of Saint-T 



.eon (Allier), France, bv 



:u 



. Michel- 



-Levy ; On the 



con nt 



action be 



tween the 



propagation 





eat with the cleavage of 



mcks 







:s of the soil th 



at! 



lave pro. 



duced them, 



by 



M. E 





az; Note 



on the Tertia 





Echinid 



se of Belgh 





by M 



. Cotteau 



; On the 



geology of the 



en 



virons of Saint-Ama 



ml. 



bv M 



. Daginco 



urt; The 



Quaternary of 



Cli 



elles, by 



M.Ameghii 





ntact of the Bathoni? 

 der of the Paris basin, by J. Wohlgemuth ; First fruits of the 

 Eocene flora of Bois-Gouet (Loire Inferieur), by M. Ed. Bureau, 

 with descriptions of two new species ; On the geology of the Pyre- 

 nees of Navarre, Guipuzcoa and Labourd, bv M. P.-W.Stuart-Men- 

 teath; On the general geologv of Spain, bv M. P. Rey-Lescure ; 

 On the Lingulae of the " gres" Armorican of La Sartthe, by M. A. 

 Guillier; Geological notes on French Guiana, after the explora- 

 tions of Dr. Crevaux, bv M. Ch. Velain. with a map of the prov- 

 ince, and numerous 'figures of sections of the rocks. The 

 river Oyapock, though only 435 -kilometres in length, carries 

 down more water than th • Ivh m \ and the greater portion of its 



I ":e ■:■ ;■ =. . ■ ■ '^ . ^ • :! ■ , : ' ; - ; - : 



chronism of the- Turonian of the S mthwest v ith that of the south 

 of France, by M. H. Arnaud. 



MINERALOGY. 1 



mass'of meteo' , ': ^ ' d 1 h is b en nu.k 



by Dr. W. Flight," of the British Museum, with the result of the 



