List of Iron Ores in the Econo3iic Collection, 29 



27. Slate Iron Ore. A block, 10x3x10 in., with piece of accom- 



panying rock, 15 X 12 in. Lake Superior Mine, Mich. From 

 L. H. Morgan, Eochester, N. Y. 



28. Specular Iron Ore. A block, 19 x 5 x 11 in. Washington Mine, 



Lake Superior. From L. II. Morgan, Rochester, N. Y. 



29. Granular Iron Ore. Two blocks, 13x6x11 and 9x3x7 in. 



Lake Superior Mine, Mich. From L. H. Morgan. 



30. Slate Iron Ore. Two blocks, 7x4x8 and 12 x 6 x 5 in. Cham- 



pion Mine, Marquette county, Mich. From L. H. Morgan. 



31. Magnetic Granular Iron Ore. A mass, 15 x 11 x 11 in. Wash- 



ington Mine, Marquette county, Mich. From L. H. Morgan. 



32. Magnetic Granular Iron Ore. A block, 14x7x11 in. Cham- 



pion Mine, Mich. From L. H. Morgan. 



33. Silicious Iron Ore. A block, 22X13X17 in., striped with red 



jasper, weighing about four hundred pounds. Marquette 

 county, Mich. Collection of Prof. James Hall, in 1870. 



34. Magnetic Iron Ore. A block, 9x9x8 in. Champion Mine, 



Marquette county, Mich. Collection of Prof. James Hall, 

 1870. 



35. Specular Iron Ore. A block, 16x8x5 in. Same locality and 



vein as ^N'o. 34. Collection of Prof. James Hall, 1870. 



36. Magnetic Iron Ore. A block, 12x7X5 in. Cheever Bed, 



Moriah, Essex county, N. Y. Collection of Prof. James Hall, 

 1873. 



37. Magnetic Iron Ore. A block, 10 x 9 x 13 in. Cheever Ore Bed, 



Port Henry, Essex county, IST. Y. From the Cheever Ore Bed 

 Company. 



38. Magnetic Iron Ore. A block, 10 x 6 x 5 in. Hussy and Howe 



Iron Mine, Ferrona, Clinton Co., JS. Y. From Herman 

 Yeeder, Agt. 



39. Hematitic Iron Ore, with imbedded quartzite. A mass, 24 x 8 x 7 



in. Salisbury, Conn. From W. P. Whittlesey, Lakeville, Conn. 



