Productions of Wier’s Cave. 58 
and through the country below. (See Tilloch’s Phil. Mag. 
Vol. XLII. p. 182.) It is a most curious phenomenon, and we 
believe entirely without a parallel. Another ‘river, called the 
White River, unites with this some miles below its origin: this 
river, which is so called from the turbidness of: its waters, is 
salutary to men and animals ; fishes live in it, and vegetation 
is nourished by its waters ; but after the junction, it becomes 
clear; the acid dissolving the earthy particles which disco- 
loured it, and it now becomes fatal to living beings: kills the 
fish, destroys the vegetation, and corrodes the stones in its 
channel. This remarkable river flows from Mount Idienne, 
in the province of Bagnia Vangni, in the eastern part of Java. 
° 
Arr. IX. Productions of Wier’s Cave, in Virginia. 
\ \ E are indebted to the Reverend Elias Cornelius, and to 
Mr. John H. Kain, for a very interesting collection of the 
calcareous incrustations of Wier’s Cave, in Virginia. 
The stalactites, and stalagmites, and various incrustations, 
are of uncommon size and beauty. Some of the stalactites 
have a delicate whiteness, and a brilliancy arising from their. 
crystallized structure, which, with the regularity of their forms, 
give them a fair title to rank with those of the famous caverns 
in the Peak of Derbyshire, in the island of Antiparos, &c. 
Tn these stalactites, the structure is most remarkably distinct, 
both in the fibrous and concentric lamellar form. In this col- 
lection were observed many forms of the crystallized hard car- 
bonates of lime, of count Bournon. 
For a description of the cavern from which these speci- 
te came, we refer to the succeeding memoir, by Mr.. 
