Your PDF has successfully downloaded.
You may be interested in finding more content on these topics:
You are not currently logged in.
Access JSTOR through your library or other institution:
Notes on the Formation of the Iron Ores
James D. Robertson
Vol. 21, No. 527 (Mar. 10, 1893), p. 131
Published by: American Association for the Advancement of Science
Stable URL: http://www.jstor.org/stable/1766899
Page Count: 1