212 M. Brou GN I ART on the fossil 



The other and more rare vegetables, are composed of hol- 

 low cylindrical stems diverging towards the lower extremity, 

 and appearing to spread out in the manner of a root, but 

 without presenting ani/ ramification.* 



None of these stems can apparently be referred to trees 

 of the palm family. This result, which I only notice, will 

 be developed and preceded by the motives which have led 

 to it, in the special work my son will publish on this subject. 



I announced at the commencement of this notice, that the 

 fact described in it was not new to geologists. Among the 

 examples brought forward of fossil vegetable stems travers- 

 ing many beds, or placed vertically in the bosom of the 

 earth, I shall speak of those which appear to me most ana- 

 logous to the example taken from the St. Etienne mines : 

 these citations will help to establish the resemblances that 

 are as real as remarkable, which the coal measures of all 

 countries present, under all the circumstances of their for* 

 mation and structure. 



Sir G. Mackenzie has observed in the coal measures of 

 Scotland, near Pennycuick, ten miles from Edinburgh, a 

 vertical trunk about 12 decimetres [ 4 feet ] high, the 

 mass of which is of coal measure sandstone, and of which 

 the bark or what, here represents it, is replaced by coal. 

 This trunk not only appears striated in the manner of the 

 St. Etienne stems, but also divided like them by trans- 

 verse articulations.t 



' A fact closely resembling it appears to have occurred in 

 the coal measures of South Shields.]: 



M. de Schlotheim also mentions vertical stems at KiflFhau* 

 sen, in the Hartz, || in the mines of Manebach, near lime- 

 nau, &c. 



But the examples that most approach that which I have 

 brought forward, have been observed in Saxony by Werner, 



* The figure shews these different circumstances. 



+ Biblioth : universelle, t. viii. p. 256. 



+ Ibid. t. viii. p. 234. ■ 



II In Leonhard Taschenbuch 1813, 7th year, p. 40. 



