Mr. Wood's Account of some Fossil Stems of Trees. 207 



Nites-hill, but the whole of the carbonaceous bark being stripped off, its 

 species could not be discovered. — Edinb. Phil. Trans, vol. ix. None of 

 the examples cited by Mr. Trevelyan, and only one instance of foreign 

 locality noticed by M. De Charpentier, at Waldenbourg, in Silesia, 

 exhibit indications of these trees having vegetated on the spot where 

 they were found, and even this instance of M. de Charpentier was not 

 to him sufficiently conclusive of the fact of their primitive situation. 

 Under these circumstances, I trust, therefore, that I need make no apo- 

 logy in offering to the notice of the Society the following Account of 

 some Fossil Stems of Trees, found in the workings of the KiUingworth 

 colliery ; the roots of which are well identified, not only with the fossil 

 itself, but also with the inclosing strata ; and also in presenting for their 

 acceptance one of the most perfect specimens I have been able to ob- 

 tain, with some specimens of the numerous impressions of vegetables 

 accompanying the strata in which these fossil stems are found. 



It is necessary perhaps to give a short sketch of the situation of the 

 strata in which these remains were found, in order to sheW their con- 

 nection with some of the predominant strata of the district, and more 

 particularly with the bed of coal of which they seem to be the accompa- 

 niment. 



The south boundary of the KiUingworth colliery is, what is called the 

 great or 90-fathom Dyke, which runs nearly east and west ; the throw 

 of this Dyke, which is down to the north, is considerably more than 

 90 fathoms, as noticed by Mr. Hutton, in the first volume of your 

 Transactions.* From this Dyke to the north, the beds rise very rapidly 

 for a few hundred yards, the inclination then gradually moderates, un- 

 til at the distance of about a mile, when the line of water-level becomes 

 due north, and the full dip west, or the very contrary direction to that 

 near the Dyke. This position of the strata is quite irregular, the gene- 

 ral line of direction of the strata of the district being NE. and SW., the 

 rise NW., and is no doubt occasioned by the infiuence of the great 

 and other slip Dykes which traverse this colliery. To a certain extent 

 from the great Dyke as before noticed, the Coal rises rapidly until we 

 get beyond the sphere of its influence, and come within that of a cross 



* Page 73. 



VOL. r. F f 



