Report of a survey and exploration of the coal and ore lands belonging to the Allegheny Coal Company : in Somerset County, Pennsylvania ; accomppanied by maps, profiles and sections /

Mode of access: Internet.

In the matter of United Steelworkers of America-CIO and various steel and iron ore companies : case no. D-18-C.

"New York, N.Y. February 13, 1952"--V. 3.

The ore deposits of South Africa : with a chapter on hints to prospectors /

pt. I. Base metals.--pt. II. The Witwatersrand and Pilgrimsrest goldfield and similar occurrences.

A study of minimum rate and increment differentials in steelworker-organized plants of companies, in the basic steel, pig iron, and iron ore industries, and in other major companies with 2,500 or more employees in steelworker-organized units in the United States and Canada for the three contract years 1956, 1957, 1958, showing A. remaining differentials, B. reductions in and elimination of differentials, C. increases in differentials.

Mode of access: Internet.

In the matter of United Steelworkers of America-CIO and various steel and iron ore companies : case no. D-18-C, appendix to a guaranteed wage plan for the workers in the steel industry /

"Union exhibit no. 11A"--Cover.

Metalliferous black shales and related ore deposits : program and abstracts : 1988 meeting of the United States Working Group of International Geological Correlation Program Project 254 /

Mode of access: Internet.

A. Geology and mineral paragenesis of the Pea Ridge Iron Ore Mine, Washington County, Missouri : origin of the rare-earth-element- and goldbearing breccia pipes /

Includes bibliographical references.

The sedimentary carbonate-hosted giant Bayan Obo REE-Fe-Nb ore deposit of Inner Mongolia, China : a cornerstone example for giant polymetallic ore deposits of hydrothermal origin /

Mode of access: Internet.

Parallel photographs of the spectra of the sun, of iron, and of iridium, from the line (H) to near the line (D), in six sections. Also separate photographs of the spectrum of titanic iron ore, in six sections.

Half-title. Reprinted from the Monthly notices of the Royal astronomical society, vol.XLIX, no.7.

Geology and ore deposits of the Afterthought Mine : Shasta County, California.

Mode of access: Internet.