Iron ore mined in United States in 1929 estimated by Bureau of Mines at 73,283,000 gross tons, increase of 18 per cent compared with 1928; about 86 per cent of iron ore shipped in 1929 came from Lake Superior district, in which approximately 63,059,000 gross tons were mined and 65,129,000 tons were shipped, increases of 20 and 21 per cent, respectively, as compared with 1928.
Iron ore shipments show increase for all districts in 1929
Iron Trade Rev
Steel ; 86 , n 3
1930
Aufsatz (Zeitschrift)
Englisch
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Lake superior. Iron ore shipments traced to destinations
Engineering Index Backfile | 1929
Exotic Animal Shipments - Planning Consideration for Animal Shipments
British Library Conference Proceedings | 1991
|British Library Conference Proceedings | 1989
|GAMA reports record billings Shipments of light aircraft increase 5.1% in 1966
Online Contents | 1997
Many more railway reports show gains in 1929
Engineering Index Backfile | 1930