Manganese : uses, preparation, mining costs and the production of ferro-alloys

Name: Manganese : uses, preparation, mining costs and the production of ferro-alloys
Author: Weld, Christopher Minot, Crane, Walter Richard, Gillett, Horace Wadsworth, Hoyt, Samuel L., Hunter, W. H., Newton, Edmund, Phalen, William Clifton, Royster, Percy H., Van Barneveld, Charles Edwin, Williams, C. E., Christianson, Peter