Ixxxvi NOTES. 



hornblende has never been met with in scoriae accompanied by augite, nor 

 have chemists ever succeeded in reproducing either hornblende or feldspar 

 (Mitscherlich, Poggend. Ann. Bd. xxxiii. p. 340, and Rose, Reise nach dem 

 Ural, Bd. ii. S. 358 and 3 63). Compare also Beudant, in the Mem. de 1'Acad. 

 des Sciences, T. viii. p. 221, and Becquerel's ingenious investigations in his 

 Traite de 1'Electricite', T. i. p. 334 ; T. iii. p. 218 ; T. v. 1, p. 148 and 185. 

 C 295 ) p. 257. D'Aubuisson, in the Journal de Physique, T. Ixviii. p. 128. 

 () p. 258.Leop. von. Buch, Geognost. Briefe, S. 7582 ; where it is 

 also shewn why the red sandstone (the todtliegende of the floetz strata of 

 Thuringia) and the coal measures should be regarded as produced by the 

 eruption of porphyritic rocks. 



C 297 ) p. 260. This discovery was made by Miss Mary Anning, who was 

 also the discoverer of the coprolites of fishes, which, as well as those of the 

 Ichthyosaurus, have been found in such abundance in England (near Lyme 

 Regis particularly), that Buckland compares them to beds of potatoes. 

 (Buckland's Geology considered with reference to Natural Theology, Vol. i. 

 p. 188 202, and 305). Respecting Hooke's hope "to raise a chronology" 

 from the study of broken and fossilised shells, " and to state the intervals of 

 time wherein such or such catastrophes and mutations have happened," see his 

 Posthumous Works, Lecture, Feb. 29, 1688 



C 298 ) p. 261. Leop. von Buch, in Abhandmngen der Akad. der Wiss. zu 

 Berlin aus dem J. 1837, S. 64. 



C 299 ) p. 262. The same author's Gebirgsformationen von Russland, 1840, 

 S. 2440). 



C 300 ) p. 262. Agassiz, Monographic des Poissons fossiles du vieux Gres 

 Bouge, p. vi. and 4. 



P 1 ) p. 262. Leop. von Buch, in Abhandl. der Berl. Akad. 1838, 

 S. 149 168 ; Beyrich, Beitr. zur Kenntniss des Rheinischen Uebergangs- 

 gebirges, 1837, S. 45. 



t 302 ) p. 262. Agassiz, Recherches sur les Poissous fossiles, T. i. Introd. 

 p. xviii. (Davy, Consolations in Travel, Dial, iii.) 



I 303 ) p. 263. According to Hermann von Meyer, it would be a Protosaurus. 

 The case of the rib of a saurian, supposed to have been found in the mountain 

 limestone of Northumberland (Herm. von Meyer, Patseologica, S. 299), is con- 

 sidered by Lyell (Geology, 1832, Vol. i. p. 148) extremely doubtful. The disco- 

 verer himself referred it to the alluvial strata which cover the mountain limestone. 

 O p. 263. F. von Alberti, Monographic des Bunten Sandstcins, Mus- 

 chelkalks und Keupers, 1834, S. 119 uud 314. 



