ee eee ae re ee ee ee ee ee 
a 
‘ i. 
T. E. Clark on Fichtelite from North Bavaria. 165 
which have separated from one another. The method of ex- 
tracting it, and its crystalline form we will consider farther on. 
In 1837, Trommsdorff* received from Mr. Fikentscher a fossil 
in the well preserved stems of buried pines. e analysis, 
which he caused to be made, shows, however, that it is the same 
a 
Fichtelite for th 
wn as an oil. This he considered to be identical in composi- 
Hon with Fichtelite; but erroneously, for he overlooked the fact 
€dwitz; and all have been found in the well preserved stems of 
this One species of pine tree. But the same has been remarked 
1 other places where similar fossil resins have been found, 
In the neighborhood of Utznach in Switzerland is a bed of 
brown coal from two to three feet in thickness, which contains 
tumerous remains of pines, firs, birches and other trees, in va- 
Tlous stages of preservation. The pine stems are almost un- 
More closely the age of this bed of brown coal. 
I found that me Neumiietion of the plants contained in it has 
ntly been made by Professor Heer,§ who has published a 
* Annalen d. Phar., vol. xxi, p.126, + Annalen d. Phar. vol, xxxvii, p. 304, 
sinalen d. Ph I. lix, p. 55. 
i Neues Jahrbuch fur pee ae Geo "y. Leonhard u. Bronn.,, 1846, p. 213. 
