Ixxxviii NOTES. 



(^ p. 268. Journal of the Asiatic Society, 1844, No. xv. p. 109. 

 C" 7 ) p. 268. Beyrich, in Karsten's Archly for Mineralogie, 1844, 

 Bd xviii. S. 218. 



(3 18 ) p. 269. By the valuable labours of Count Steruberug Adolphe 

 Brongniart, Goppert, and Lindley. 



( 319 ) p. 269. R. Brown's Botany of Congo, p. 42 ; and D'Urville, in the me- 

 moir entitled De la distribution des Fougeres sur la surface du globe terrestre. 



(S 20 ) p. 269. Such are the cycadeae discovered by Count Sternberg in the 

 old carboniferous formation at Radnitz in Bohemia, and described by Corda. 

 Two species of cycadites and zamites Cordai, see Goppert, fossile Cycadeen 

 in den Arbeiten der Schles. Gesellschaft, fur vaterl. Cultur im J. 1843, S. 33, 

 37, 40, and 50). A cycadea (Pterophyllum gonorrhachis, Gop.) has also been 

 found in a coal bed at Konigshiitte, in Upper Silesia. 

 C 521 ) p. 269. Lindley, Fossil Flora, No. xv. p. 163. 

 C 02 ) p. 269. Fossil Coniferse, in Buckland, Geology, p. 483490. 

 Witham has the great merit of having been the first to recognise the existence 

 of coniferse in the primitive vegetation of the carboniferous period ; before 

 his time, almost all the trunks of trees found in this formation were considered 

 to be palms. The species of the genus Araucaria are not peculiar to the coal 

 formations of the British islands ; they are also found in Upper Silesia. 



P) p. 270. Adolphe Brongniart, Prodrome d'une Hist, des Ve'getaui 

 fossiles, p. 179 ; Buckland, Geology, p. 479 ; Endlicher and Unger, Grund- 

 zuge der Botanik, 1843, S. 455. 



4 ) p- 270. " By means of Lepidodendron a better passage is established 

 from Flowering to Flowerless Plants, than by either Equisetum or Cycas, or 

 any other known genus." Lindley and Hutton, Fossil Flora, Vol. ii. p. 53. 



C 325 ) p. 270. Kunth, Anordnung der Pflanzenfamilien, Handb. der Botanik, 

 S. 307 and 314. 



(^ 6 ) p. 270. A very striking proof of coal having been formed (not by the 

 action of fire in charring vegetable vessels, but more probably) by decom- 

 position under the influence of sulphuric acid, is afforded, as Goppert has 

 acutely remarked (Karsten, Arcliiv fur Mineralogie, Bd. xviii. S. 530) bj 

 the conversion of a piece of the amber tree into black coal ; the coal and the 

 nnaltered amber being found close together. On the part which the smaller 

 vegetation may have had in the formation of beds of coal, see Link, iu tbs 

 Abhandl. der Berliner Akademie der Wissenschaften, 1838, S. 38. 



(S 27 ) p. 271. See the accurate investigations of Chevandier, in the Comptes 

 rendus de 1'Acad. des Sciences, 1844, T. xviii. P. i. p. 285. In comparing 

 this bed of carbonaceous matter, 0'6 in. in thickness, with beds of coal, the 



