Ay 
; e Miscellaneous Intelligence. 145 
on” river. The mineral is sometimes found equal to the best American 
variety, and can be landed at the port of Amoy at $44 perton. At 
present, only a small quantity is produced, chiefly however on account of 
the limited demand that exists for it, as the natives employ it only in the 
burning of lime ; the smelting furnaces of the adjacent iron mines not 
being furnished with a sufficiently powerful blast to allow of anthracite 
being used in them. He could not speak positively of the extent of the 
better acquainted with the art inin r. Macgowan remarked, 
that at this time, when the steam navigation of the Chinese waters is 
ecoming 
extremely important, and should be visited and explored as far as pos- 
sible, 
Specimens of the coal and accompanying shales were exhibited, and 
Dr. Harland stated that some fragments of fossils in the specimen of 
the “ Under-clay” which he had examined, appeared to be identical 
similar remains of Stigmarie from corresponding strata of the car- 
boniferous series of England and the United States. 
On Raindrop marks; by J. Wyman, (Proc. Bost. Soc. Nat. Hist., 
Nov., 1855, p. 253.)—Prof. Wyman’s investigations show that ordina 
rain-marks are characterized by the existence of radiating lines around 
the circumference of the impressions ; which are caused by fragments 
of the drops, as they are dispersed, often impinging upon the plastic 
surface. 
rof. W 
e of sp 
The rain-mark is modified by the condition of | 
rikes ; if the latter is hard, or o | 
border. ue 
yman thought that rain-marks could be disti 
ray. . 
tomaceous deposils; by Prof. J. W. 
ing method of cleaning diatomaceous ~ 
s than any other I have tried, I re- 
