...its continuity, and its lustre was much impaired ; it exhibited innumerable very minute indentations, and intermediate and corresponding salient points...experiment, in which I used a support of plumbago, there 1823.] Scientific Intelligence. 469 were some interesting varieties in the phenomena. The plumbago...

...various places, near the edges, the diamond was consumed, with deep indentations. These results seem to indicate that, were the diamond a good conductor,...globule would be obtained "by the compound blowpipe." Professor Silliman next subjected the Anthracite of Wilkesbarre, Pennsylvania, to similar trials. "-...

...the combustion. In various places, near the edges, the diamond was consumed, with deep indentations ; and occasionally, where a fragment had snapped off by decrepitation, it disclosed a conchoidal I fracture, and a vitreous lustre. These results were nearly uniform, in various trials : and every...

...results seem to indicate that, were the diamond a good conductor, it would he melted by the deflai>rator; and, were it incombustible, a globule would be obtained by the compound blowpipe."—(Edinburgh Philosopkical Journal.) PHARMACY. 11. Difference between Indigenous and Levant...

...the combustion. In various places, near the edges, the diamond was consumed, with deep indentations, and occasionally where a fragment had snapped off,...it would be melted by the deflagrator, and were it combustible, a globule would be obtained by the compound blowpipe. In one experiment, in which I used...

...the combustion. In various places, near the edges, the diamond was consumed, with deep indentations, and occasionally where a fragment had snapped off,...conductor, it would be melted by the deflagrator, and were ii incombustible, a globule would be obtained by the compound blow pipe. In one experiment, in which...

...another place he observes, " Were the diamond a good conductor, it would be melted by thedeflagralor; and were it incombustible, a globule would be obtained by the compound blowpipe." It is evidently, therefore, the opinion of the author of this passage, that carbon, even in its most...