D C. Literature of Manganese.” In this little pamphlet of 44 The following is the construction and solution of the prob- pages are contained 400 distinct references to manganese lem: Theangle, A BC, is to be divided into three equal minerals, extending from 1596 down to 1873, and 1,700 re- parts :… … of othersthat may come after, ina style uni- same way more pOints are found, all lying in form with those above described. cals used. The second section of the testing plate, where the circle, H GO, with the radius, H I= BK+L K, the light passes through a less number of layers, gives Nee ek Tan…
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