‘ 
3¥ 
30. Serpentine running into asbestoid. New-Haven. 
31. Carbonate of lime, crystalized in parallel fibres, 
very much like some of the Gibraltar specimens. From 
Curagoa. ‘The interest of a mass as large as an infant’s 
head, is increased by the perforation it shows of the borers 
and piercers of rocks. 
32. Specimen of a water-worn stone, three inches long, 
two inches wide, and about half an inch thick ; containing 
molluscous relics in abundance, chiefly bivalves, with their 
edges to the exterior surface, some broad-sides. North- 
west Coast. 
‘33. Samples of the white crystalized primitive marble of 
Eastchester, 20 miles from this city, of which the huge co- 
lumns of the Exchange consist. The quarry affords masses 
one hundred feet long, compact and entire. 
34. Two teeth of the fossil animal at Skiddaway Island, 
Georgia; on which a judgment was formed that they be- 
longed to the unknown and extinct megatherium, as an- 
nounced in the Annals of the Lyceum, vol. i. p. 58 and 
61, with figures; and continued by Mr. Cooper, ibid. p. 
114 and 124, with plates.—A. Taylor. 
PoE See eee 
N° XII. 
The twelfth Shelf. 
1. CrysTaLizEp stalactite, from a cave distant two 
leagues from Marseilles, in France. The present specimen 
was taken from a natural pillar, about three miles from the 
entrance ; the whole extent being nine miles.—A. Imbert. 
2. Sulphuret of zinc (blende), of iron (pyrites), and of 
lead (galena), associated with crystals of quartz. Shaw- 
angunk. | 
3. Syenite of quartz, shoerl, and feldspar. Plandome. 
4. Iron ores of Elba: 

