Trans. N. Y. Ac. Set. 18 Nov. 5, 



sian locality ; but at Magnet Cove the cubical form is exceptional in 

 the magnetite crystals, that prevailing being the octahedron, with the 

 faces of the cube more or less developed. 



Wavellitc, from a new locality in Arkansas. It occurs not only on 

 sandstone, but coating crystals of transparent quartz in small green 

 radiations, closely resembling a prehnite. Limonite is associated with 

 it, coating the quartz in the same way, and appears to be the result of 

 alteration of the wavellite. The large and perfect spheres of the 

 latter show a lighter color on fracture, which distinguish it from the 

 form which is found in Montgomery County. 



Spherostilbite and cJiabazite, from Tyringham, Berkshire County, 

 Mass. They are found in a vein of pyroxene, attached to mica. The 

 chabazite is white, resembles very closely that of Aussig, Bohemia, 

 and occurs in crystals from one-eighth to one-quarter of an inch in 

 length, associated with spherostilbite. The latter is found in beauti- 

 ful isolated spheres up to one-quarter of an inch in diameter, in one 

 case coating a hexagonal crystal of dark gray mica, and rivals any 

 found elsewhere in this country. Isolated crystals of the mineral are 

 rare. 



Iron Garnet^ from Russell, Mass. These crystals are remarkably 

 well defined, of a dull brownish black color, usually trapehedrons with 

 the faces of the rhombic dodecahedron slightly developed. They were 

 found in a vein between coarsely crystallized mica and feldspar, with 

 the interstices filled with quartz. They vary in size from one-quarter 

 to three and one-quarter inches, and are found in beautiful groups 

 which sometimes contain from fifty to one hundred and fifty perfect 

 crystals. 



November 5, 1883. 

 Regular Business Meeting. 

 The President, Dr. J. S. Newberry, in the Chair. 

 ■ Twenty-eight persons present. 



Dr. Antonio di Gregorio, of Havana, Cuba, was elected Cor- 

 responding Member, and several of his published papers were 

 presented to the Academy. 



Dr. B. N. Martin exhibited specimens of copper ore, from the 

 vein recently opened at Bloomfield, N. J., one foot and a half in 

 width, containing twenty-seven per cent, of copper, and crossing 

 a bed of shale impregnated with copper. 



The President remarked that a large quantity of copper was 

 ontained in the rocks of the Triassic formation, although no pay- 



