12 
While Scheererit distills undecomposed, Konlit yields 
a substance which melts by the warmth of the hand, 
and has a composition perhaps identical with that of 
Tekoretin, which we have yet to notice. Kraus pro¬ 
posed the name Pyro-Scheererit for this latter. 
Later Haidinger 1 in an article comparing the cry- 
staline form of Hartit with that of what he supposed 
to be Scheererit, and which he had received from Utz- 
nach, remarks that the latter melts at 46 °C. 
Steenstrup 2 „ who has written considerably on the 
marshes and coal beds of Denmark, discovered in the 
stems of the pine trees, which are found in these in an 
almost perfect state of preservation in the neighbour¬ 
hood of Holtegard, a fossil resin which was supposed 
to be Scheererit. The other woods occurring with this 
pine (P. sylvestris) are the same as those of Redwitz 
and Utznach. 
The resin found by Steenstrup was shown by the 
analysis of Forchhammer to be composed of two carbo- 
hydrogens, and both quite distinct from Scheererit. 
They were separated by dissolving in boiling alcohol 
and allowing to crystalise. Tekoretin, being less soluble 
than Phylloretin, crystalised first. The former melts 
at 45 0 C. the latter at 87 0 C. 
From this cursory view of the different car bo-hy¬ 
drogens discovered in the three localities which have 
been mentioned, we perceive that in each place a fossil 
1 Ann. d. Phys. u. Ch. Vol. LIV, p. 261. 
2 Videnskab. Selskabs naturvid. og Math. Afhandlinger, 9 Deel. 
1842. 
