EXISTENCE OF MECHANICAL DEPOSITS. 17 



3. That it exifts in all quarters of the globe. ted mates of 



Thefe fads lead him to the great difcovery, that this for. Jjjj^gg* 



mation at one time, extended as a cover around the whole netted. 



earth. From thefe obfervations it is evident, that we may 3- That it ex. 



ifts every where. 



expect to meet with veftiges of many of the organic and un- 4 . T | iat ir f or . 

 organic matter which at that time exifted upon the cruft of the merly covered 



■ . i ■ n , ■ r ' a v i ai the whole earth. 



earth, m the rocks of this formation. Accordingly, the in- and muft con , 

 veftigations of geognofts have difcovered organic remains in tain organic re- 

 everv rock of this formation ; the following are given as al- 

 liances : 



Organic remains in Green/lone, Bafalt, Wacke, and Trapp 



Euccin. 



QUADRUPEDS. 



1. Werner in his geognoftic lectures, informs us that the Organic remains 



wacken of Kalten-nordheim is fometimes found to contain [ n g reen ftone, 



bafalt, &c. 

 deers horns. f oum j . v;z .. f 



2. The Abbe Fortis difcovered the head of an unknown quadrupeds, 

 animal in a foft wacken, in the valley of Ronca in the Vero- 



oefe. Vide Befchrebbung des Thales Ronca, f. 96. 



3. Sauffure obferved bones of quadrupeds in the wacken of 

 the catacombs of Rome. 



Lettre a Mr. le Chev. Hamilton, J. de Phj/Jique. Tom, VII. 



SHELLS and ZOOPHYTES. 



1. Dr. Richardfon found (hells in rocks of the Trapp for- of fliells and 

 mation at Ballycaftle in Ireland. — Kirwan's Geol. Effays. zoophytes. 



2. Mr. Von Buch informs us, that in the county of Lan- 

 deck, he obferved a bed of wacken, which contained betides 

 pebbles of chalcedony, turbinites in a ftate of complete pre- 

 fer vation. Verfuch einer mineralogiften Vefchreibung von Lan- 

 deck, ion Leopold von Buch. f. 35. 



3. Abbe" Fortis obferved numerous petrefactions of (liells in 

 Wacken, and Trapp Breccia, alfo a few in Bafalt, in the for- 

 mation of the valley of Ronca. 



4. Berolding found a cornu ammonis, which (till retained 

 its mother of pearl luftre, in the bafalt of Torez. In the ba- 

 falt of Thurgau, near the Boden lake, he obferved gryphites, 

 ammonites, and gloifopetroe, Cliem. Annal. 1794, p. 103. 



5. In the Wernerian collection of petrefactions I faw fpe- 

 cimens of greenftone, containing petrefactions of (hells. 



Vol. III.— September, 1302. C VEGE- 



