Mineralogy and Geology. 297 
“Miners’ Union” at es to be a furnace product, perhaps made by 
the Indians. Dr. Kenngott very properly classes this substance with 
whitneyite ( Uebersicht, 7861, p- 114), and the mass is unquestionably a 
Tr. 
Genth (this Journal, [2], xxiii, p.191). A further notice of this boulder 
has been sent to Prof. Silliman, Se by Col. Chas. Whittlesey of Cleave- 
land, from which we extract the following facts. It was found on the 
small pieces of cale-spar. The fragment analyzed by Scheerer gr sent 
to him by Col. Whittlesey through Mr. Boole, who was then a student 
in ro etig Col. Whittlesey considers that this boulder was transported 
to the St. Louis River, from some vein, by the northern drift. - had the 
usual worn aspect of the copper boulders of the Lake Su uperior region. 
writer is informed by Mr. C. F. Eschweiler, Giperiarandett of the 
_ Royale Mine, that a vein of arsenids has recently been discovered 
on the property of the Columbia Mining Company at Houghton. The 
whitneyite is there found associated with native copper and domeykite. 
%, 
Catalog einer Sammlung vom 675 Modellen in Ahornhols, zur 
beucue der Krystallformen der Mineralien, ausgegeben vom Rhein 
Be susetlien: Compiiie des Dr. A. Krantz in Bonn. pp. 50, Sen: 
nn, 1862.—This sien is a —— ‘of collection of erystal 
models now made by Dr. K The models 1 to 78 illustrate the 
Pe namnetric system, 79 to 151 me dimetric system, 152 to 343 the 
hexagonal system, 344 to 506 the trimetric system, 507 to 645 the 
Monoclinic system, and 646 to 675 the triclinic system, ee these 
are 81 models of twin crystals, illustrating twinning in 44 spec 
catal 
The models are made with the ene I many of them 
se eopies from models furnished to Dr. Kran a 
ey are made of maple, aa have an erat © diametes of 6 
centimetres {about 2 inches). They are sold in Bonn sy 120 P: 
thalers, Gud. B, 
V. ZOOLOGY. 
a Contributions to Conchology, vol. ii—A Monograph of the Order . 
holadacea and other papers ; as seat W. Trvox, Jr. Dec. 31, 1862, 
Ferry, Seams ] 
the United States,” (13-82),' “ Synopsis of the Recent Species of 
? See this Journal, [2], vol. xxiii, March, 1862. 
