COLLECTIONS IN ECONOMIC GEOLOGY AND METALLURGY, 121 



(4) Magnetite, quart/, (Iccomposed feldspar, i)yrite. Davenport Mine, S|>arta. 

 April 17, 18H0. (4l.ir.lt.) 



(5) Magnetite. Pardee Mine, Sparta. April 17, 1880. (414r)8.) 



((5) Magnetite, pyrrliotite. Hnde or Stanhope Mine, IJyram. April 27, 1880. 

 (41445.) 



(7) Magnetite. Ilnde or Stanhope Mine, Byrani. April 27, 1880. (41443.) 



(8) Magnetite, surface specimen. Hude or Stanhope Mine, Uyraiu. April27, 1S80. 

 (41444.) 



Nine specimens represent the Andover Mine, at Andover, taken 

 March G, 1880: 



(1) Magnetite, surface specimen. (41463.) 



(2) Magnetite, containing quartz and pyrite. (41464.) 



(3) Magnetite, pyrrhotite. (41462.) 



(4) Magnetite, decomposed. (41465.) 



(5) Magnetite. (41461.) 



(6) Magnetite, pyrrhotite. (41460.) 



(7) Magnetite, pyrrhotite. (40608.) 



(8) Magnetite and dolomite, containing pyrite and graphite. (40641.) 



(9) Magnetite, roasted. (40587.) 



(1) Impure magnetite. Glenden Mine, Green, March 2, 1880. (40630.) 



(2) Magnetite, quartz, feldspar. Glenden Mine, Green, March 2, 1880. (40626.) 



(3) Magnetite, chloritic material. Hill Mine, Franklin Furnace, March 10, IHBO. 

 (41452.) 



(4) Magnetite, quartz, decomposed feldspar, pyrrhotite and graphite. Furnace 

 Vein Mine, Franklin Furnace. March 12, 1880. (41449.) 



(5) Magnetite, feldspar, chalcopyrite and graphite. Furnace Vein Mine, Franklin 

 Furnace. March 10, 1880. (41494.) 



PASSAIC COUNTY. 



(1) Magnetite. Peters Mine, Pompton. June 18, 1880. (40649.) 



(2) Magnetite, quartz. Peters Mine, Pompton. February 9, 1880. (40632.) 



(3) Magnetite, quartz, feldspar. Cannon Mine, Pompton. June 1, 1880. (40657.) 



(4) Magnetite. Hope Mine, Pompton. June 18, 1880. (40645.) 



(5) Magnetite. Hope Mine, Pompton. June 18, 1880. (40658.) 



MORRIS COUNTY. 



Ten specimens represent the Hacklebarney Mine at Chester ; taken 

 May 8-10, 1880: 



(1) Magnetite, pyrrhotite. (41475.) 



(2) Magnetite, pyrrhotite. (41477.) 



(3) Magnetite, containing pyrite, and 



chlorite, (41479.) 



(4) Magnetite, containing much pyrite. (9) Magnetite, pyrrhotite. (40570.) 



(41480.) (10) Magnetite, pyrrhotite. (41476.) 



Six specimens represent the Byram Mine at Eandolph ; taken May 

 21, 1880: 



(1) Magnetite, quartz, feldspar. (40553.) (4) Magnetite, containing (piartz and 



(2) Magnetite, decomposed feldsjtar. feldspar. (40.595.) 



(40598.) (5) Magnetite, feldspar. (40(i2T.) 



(3) Magnetite, coarsely cleavable. (6) Magnetite, and decomposed silicates. 



(40596.) ' i (40593.) 



(5) Magnetite. (40579.) 



(6) Magnetite, pyrrhotite. (41478.) 



(7) Magnetite, pyrrhotite. (40568.) 



(8) Impure magnetite. (40(il4.) 



