On the Mica Slate Formation at Flimherg. 311 



vague impression on my memory. How invaluable to Ethnography are 

 the two statues of the First Osortasen, now in the royal cabinet of Ber- 

 lin ! Those I have not seen, nor the memoir in which Dr Lepsius has 

 described them. 



I have, for the most part, omitted any remarks on the intellectual and 

 moral character of the Egyptians, because they would have extended my 

 work beyond the limits prescribed by the present mode of publication. 

 I have also avoided, as much as possible, those philological disquisitions 

 which have of late years combined so much interest and discrepancy ; 

 but which are all important to Egyptian ethnography, and are daily 

 becoming better understood, and, therefore, of more practical value. For 

 an instructive view of this question, and many collateral facts and 

 opinions, the reader is referred to the third volume of Dr Prichard's 

 Researches into the Physical History of Mankind — a work which commands 

 our unqualified admiration, both in respect to the multitude and the 

 accuracy of the facts it contains, and the genius and learning with which 

 they are woven together. 



I look with great interest to the researches of Dr Lepsius at Meroe, as 

 well as to those of my friend Dr Charles Pickering, who is now in Egj-pt 

 for the sole purpose of studying the monuments in connexion with the 

 people of that country ; and, finally, it gives me great pleasure to state, 

 that the profound erudition of the Baron Alexander de Humboldt is at 

 this moment engaged in a work which will embrace his views on Egyp- 

 tian ethnography, and give to the world the matured opinions of a mind 

 which has already illuminated every department of natural science. — 

 Transactions of the American Philosophical Society ^ vol. ix., New Series, 

 Part I., p. 158. 



On some particular Phenomena presented by the Mica Slate 

 Formation at Flinsberg^ in the Biesengehirge, By M. Gus- 

 TAV Rose. 



This bed of mica slate is found in the gneiss to the north- 

 west of the Riesengebirge, and extends from Raspenau as far 

 as Wittich, and follows a curved line by Liebwerda, Schwarz- 

 bach, Flinsberg, Giehern, Querbach, Kunzendorf, Blumen- 

 dorf, Hindorf, Alt-Kemnitz, as far as Voigtsdorf. Near the 

 middle portion at Flinsberg, at the surface, it is rather 

 more than a quarter of a German mile in breadth ; it then 

 cuts under sharp angles the two elevated summits of the 

 gneiss of the Riesengebirge, which extend in a north-west 

 direction from the two sides of the upper valley of gneiss, the 



