34 On the Geology of the Austrian Alps. 



ginning on the west and proceeding to the east, we crossed the 

 Alps successively in the valley of the Rhine, in the Voralberg, 

 in the Allgau, along the Lech, between Fussen and Nassereit; 

 between Seefeldtand Amergau ; between Seefeldtand Benedict- 

 beuren ; along the Inn, to the southern Tyrol over the Brenner ; 

 partly to the south of the Chiemsee lake, in the valley of the 

 Bavarian Traun, of the Saal, and the Achenbach ; along the 

 Salza from Salzburg to Werfen ; from Salzburg to Liezen ; 

 from that place to St Gallen ; from Steyer to Eisenerz ; from 

 Waidhofen to Eisenerz ; from Gaming by Neuhaus, Palfau, 

 and Gams, to Eisenerz ; from Neuhaus to Mariazell ; from St 

 Polten to Seewiesen by Maviazell ; from St Polten to Baden 

 and Vienna ; and from Vienna to Gratz and to Croatia, through 

 the Matzegebirge. The collections of rocks made at all these 

 and the following localities I have preserved, and will be delight- 

 ed to explain them to geologists. 



In the southern Alps, we have visited in the same way all 

 the southern border of the calcareous alpine chain from Berga- 

 mo to Conegliano. We have ascended along the valleys of the 

 Brenta, seen those of Fassa, of the Cordevole, of the Piave, 

 of the Fella, and of the Drave. Lastly, we crossed the Leo- 

 ben ; we visited Bleiberg, Raibel, Laibach, Idria, the valley be- 

 tween Idria and Lack, Trieste, and Fiume. We went over the 

 greatest part of Istria to its southern termination. We entered 

 into Dalmatia, crossed the Capellen-Gebirge from Buccari to 

 Carlstadt, and, after an excursion farther east, we followed the 

 road from that town to Laibach. We may add, that, well in- 

 formed of all the difficulties in classifying the Gossau deposite, 

 we last year made a journey through the Austrian Alps, for the 

 sole purpose of studying thoroughly all the well known localities 

 where such rocks occur, and of establishing a reasonable classifi- 

 cation, and describing each locality. After these journeys, con- 

 tinued during nine years, for the study of the alpine hmestone 

 chain in Germany, we thought that we might, assisted by our 

 friends, attempt to lay before the geological public the conclu- 

 sions explained in this paper and elsewhere. In what relates to 

 the difference of our opinion from that of Messrs Sedgwick and 

 Murchison, the public will now be able to judge ; and, we 

 trust, that they will ere long favour us with an answer, written 

 with that calmness and spirit of concord which ought always to 

 accompany scientific discussions. 



