The sample to which the results refer consisted of large brownish
black lumps, many of which showed woody structure; the fractures were
conchyloid, the surface shiny and highly reflecting. It was interspersed
with a considerable amount of an amber colored resin. When powdered it
appeared chocolate brown. It burned readily, the flame being bright and
very smoky. Its ash was light and reddish brown.

It consisted of--

Water (loss at 212 deg. F.) 20.09
Organic and volatile matter 75.19
Ash 4.72
------
100.00

The organic and volatile constituents had the following percentage
composition--

Carbon 71.26
Hydrogen 5.62
Oxygen 21.58
Nitrogen 1.06
Sulphur 0.48
------
100.00

The ash was composed of--

Silica 27.26