22 Dr Boue's Observations on tlie 



is wanting, for the presence of petrifactions is only accidental. 

 As it is not necessary for the characterizing of every chalk de- 

 posite that it contain Crania parisiensis, may not the locality of 

 Kressenberg have been unfit for the habitation of the animals 

 whose remains are searched for in vain ? Besides, why are the 

 Crustacea (craw-fishes) so abundant at Sonthhofen, and so scarce 

 at Kressenberg ? Why are the terebratulites more numerous in 

 the first than in the second place ? AVhy are more univalves in 

 the latter than in the former, while the large oyster and the 

 Echinidea seem equally distributed ? Sonthhofen is acknow- 

 ledged to be greensand, as also the Mount Fis^ but turrelites 

 occur only in Fis. 



If the ferriferous deposite of the Kressenberg was isolated at 

 a distance of 300 miles from Sonthhofen, and if such a deposite 

 had been observed elsewhere in the tertiary series, the conclusion 

 of our adversaries would be of some value. But this instance of 

 pisiform iron-ore would be the only one known in tertiary for- 

 mations ; and further, this deposite is not isolated, but, on the 

 ^contrary, it is connected with that of Sonthhofen by means of 

 similar rocks which crop out here and there, on the foot of the 

 Alps between Adeholzen and Anzig, behind Bergen, between 

 Aschau and Rottau, especially near Branenberg, New-Baiern, 

 and Heilbrunn. On the other hand, these gentlemen could 

 easily have visited, from Salzburg, a similar deposite on the 

 Haunsberg group north of that city ; and if they had visited, 

 as Lill and I did, the northern foot of Mount Trauenstein near 

 Gmund in Austria, they would have seen there also the rocks 

 and fossils of the Kressenberg, and those of Gossau, as they 

 have erroneously marked in the section. Fig. 1. The nummu- 

 lite iron-sandstone is there interposed between the Vienna sand- 

 stone and the alpine limestone ; and the fossils of Gossau exist 

 only on the southern side of Mount Trauenstein, in the small 

 valley of the Eisenbach, and in another deposite. 



Now, we ask, can a more evident connexion be desired ? Is it 

 not evident that the deposite extends along the foot of the Alps, 

 from Mount Trauenstein to Sonthhofen, from whence it passes 

 through the whole Voralberg to Switzerland, as these gentlemen 

 also mention to be the case ? We ask them, if they will not find it 

 very difficult to classify all these localities between Sonthhofen 



