Description of a new Graptolite. 187 
splendor of the scene. By contrast with the deep-red flame of 
e canes, the flame of these trees appeared of a very light-red 
color, and the white smoke of the burning trunks was also in 
lively contrast with the heavy rolling masses of black smoke 
which surrounded the fire. 
The charred leaves of the cane being thin and light were 
driven off in considerable quantities. They were frequently 
carried up and were sometimes found at a distance from the place 
of the fire. Compared, however, with the extent of the fire, and 
the immense amount of matter consumed, very little was carried off 
in this manner. The combustion was complete as well as rapid, 
Owing to the dryness of the material, the thinness of the stems 
and stalks of which it consisted, and the speedy explosion of the 
hollow joints on the first approach of the fire. Moreover neither 
the lighter nor heavier parts could rise unconsumed to a great 
height through the hot air and flame which were above the fire. 
_ These are some of the principal facts which attended this burn- 
ing. It isascene of not very common occurrence even at the 
South, and when it does take place, a few circumstances may en- 
tirely change the effect. If, for example, the cane is not suffi- 
ciently dry, or if it has been covered with sediment from an over-_ 
Art. XX.— Description of a new Graptolite found in the lower — 
Silurian Rocks near the Falls of St. Croix River; by H. A. 
Provr, M.D. 
THE remains of Graptolites are generally found in so imperfect 
4 State of preservation that their exact place in the scale of ani- 
Wahlenberg and Schlotheim refer them to the Orthocerata ; 
Nilsson to the Fixed Corticate zoophytes (Gorgonide or Anti- 
