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Pechstein von der Baula in Island. Sitzber. d. math, naturw. CI. d. Ak. d. 



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Acad^mie des Inscriptions. M^moires, xxxvix; M^m., p. 436. 



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 Annalen der Erdkunde, in, 1831, p. 428. 



Annals and Magazine of Natural History (Loudon) November, 1872. 

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 Annales des Mines (Paris), xi, 1846, pp. 333-338. 

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 Annales G6n. Sci.Phys., ii, 1819, pp. 205-207. 

 Antiquarisk Tidskrift, 1861-'63, pp. 331-341. 

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 Archiv for Mathemat. og Naturvidensk. (Christiauia). Band 7, pp. 200-232, 233-239; 



Band 9, pp. 69-154. 

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139-143, 252-253, 318. 

 Ausland, xviii, 1845, p. 1276; xx, 1847, p. 368; xxvi, 1853, p. 839; xxvii, 1854, pp. 



784, 812, 1167, 1191, 1215; XXX, 1857, p. 763; xxxiv, 1861, pp. 144,1057; xxxv, 



1862, pp. 465, 491; xxxvi, 1863, p. 1035; XLi, 1868, p. 120; XLViil, 1875, pp. 



466-469; XLix, 1876, p. 680; Lii, 1879, pp. 243-247. 

 Bartolini (Th.). Acta medica, 1671-'72, p. 282. 

 Bentley's Miscellany, November, 1857. 

 Bergens Tideude, July 4, 1873. 

 Berlin. Deutsche geologische Gesellschaft. Zeitschrift, I, 1849, pp. 232-244 ; vi, 1854, 



pp. 291-299; xxviii. Heft 2, pp. 203-216. 

 Berlin. Gesellschaft fiir Erdkunde. Monatsberichte. NeueFolge,iv, 1847, pp. 280-285. 

 Berlin. Gesellschaft fiir Erdkunde. Zeitschrift. Neue Folge, i, 1856, pp. 457-459. 

 Berliner Gesellschaft naturforechender Freunde. Beschaftiguugen, ii, p. 536. 

 Berlingske Tidende, Aug. 4, 1873. 

 Bertuch. Neue allgem. geogr. Ephemeris, x, 1819, pp. 361-362; xi, 1822, pp. 407-426; 



XII, 1823, pp. 341-342; xiii, 1824, pp. 452-457; xvii, 1828, p. 198. 

 Beschaftiguugen der Berliner Gesellschaft naturf. Freunde, il, p. 536. 

 Bibliothek der neuesten Reisebeschreibungen (Schneider), ii, Bertuch, 1 Bd.,2 HiiLfte 



der I. Centurie. 

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