DEPARTMENT OF MINERALOGY. 147 



By Purchase : 



A series of one hundred and forty-nine exceptionally fine 

 specimens of North American minerals selected from the col- 

 lection formed by Mr. Willcox, of Philadelphia, of which the 

 most important are mentioned below : — 



Diaspore ; TJnionville, Chester County, Pennsylvania. 



Corundum : North Carolina. 



Pyroxene ; Burgess, Ontario, Canada. 



Troostite ; Franklin, New Jersey. 



Scapolite ; St. Lawrence County, New York. 



Fowlerite : Franklin, Sussex County, New Jersey. 



Tourmaline ; St. Lawrence County, New York. 



Garnet ; Delaware County Pennsylvania ; and Westfield, 

 Massachusetts. 



Altaite and Petzite ; Boulder County, Colorado. 



Danburite ; Eussell, St. Lawrence County, New York. 



Rutile, twinned ; Magnet Cove, Arkansas ; and Lincoln 

 County, Georgia. 



Brookite ; Magnet Cove, Arkansas. 



Zircon in large crystals and twinned ; Renfrew County, 

 Canada. 



Phlogopite in very large crystals ; Burgess and South 

 Elmsley, Ontario, Canada. 



Molybdenite ; Ontario, Canada. 



Gieseckite, a large crystal ; Lewis County, New York. 



Apatite ; Renfrew County, and Frontenac County, Canada. 



Ortho«lase and Microcline ; Pike's Peak, Colorado. 



Microlite ; Amelia County, Virginia. 



Scapolite ; Ontario, Canada. 



Pyroxene and Amphibole ; Renfrew County, Ontario, 

 Canada. 



Amphibole ; Pierrepont, St. Lawrence County, New York. 



JefFersonite ; Franklin, New Jersey. 



Corundum ; Iredell County, N. Carolina. 



Staurolite ; Cherokee County, N. Carolina. 



Clinochlore ; Chester County, Pennsylvania. 



Quartz ; Pike's Peak, Colorado. 



Pyrophyllite; Lincoln County, Georgia; and Orange County, 

 N. Carolina. 



Brucite ; Texas, Lancaster County, Pennsylvania. 



Columbite ; Yancey County, N. Carolina. 



Jade ; Diana, Lewis County, New York. 



Sphene ; Renfrew County, Ontario, Canada. 



Zoisite ; Ducktown, Tennessee. 

 Other specimens worthy of special mention are : — 



Neptunite ; Julianehaab, Greenland. 



Epididymite ; Julianehaab, Greenland. 



Flinkite; Harstigen, Pajsberg, Sweden. 



Atacamite ; Sierra Gorda, Caracoles, Chili. 



0.107. Hyalophane ; 



