license: This image is a derivative work of the following images: File:Map_of_Michigan_highlighting_Alcona_County.svg licensed with PD-self 2006-02-12T12:50:17Z...
‘o4r "035 I"lIg ‘018 18 "O4I TABLE SHOWING . 9 | 2/3 Analysis) PNG ccpe shaw mean Magnetic Ore. 1°89 1°274 -923 616 040 Al,O; CaO ...
inches thick, weighing 30 to 40 pounds each, after which it is ready for the png-mill. Washing is ased in the prepaiation of some sorts of clay the inch...
