Mohave County miner and our mineral wealth., 1919-11-22
THE MANGANESE
 INDUSTRY IN 1919

Reports. received from the shippers by the United States Geological Sur vey, Department of the Interior, show that for the six months ended June 30, 1919, the shipments of high grade manganese ore amounted to 44,539 tons. The shipments for the first quarter of 1919 were 23,937 tons and those for the second quarter were 2O,- 602 tons. The total shipments of high grade ore for this period of six months were less than those for the quarter of the year 1918 in which the ship ments were lowestrthe first quarter in which they were 55,682 tons. During the three quarters from Octo- Der 1, 1918, to June 30, 1919, the ship ments of high grade ore showed a steady decrease. <.
 The number of shippers of high grade ore during the first six months of 1919 was only 30, whereas the num- Der for the year 1918 was PAY. r The total shipments of low grade ore containing 10 to 35 per cent of manganese for the six months ended June 30, 1919, were 86.158 tons. The total shipments for the six months were nearly two and one-half times the total for the first quarter of 1919.
 The shipments of ore containing 5 to 10 per cent manganese during the first six months of 1919 were 16,871 tons, an increase of 16,741 tons over the shipments made during the first quarter of 1919, which were only 130 tons.
 Nearly all the ore shipped by the few operators who have been supply ing the market during the last six months has been shipped under con tracts which were made early in 1918 and which expired July 1, 1919 Seven operators who did not ship during the first quarter of 1919 shipped during the second quarter, but all these ex- cept one small shipper have been ship ping under contracts. Only two or three shippers of high grade ore re- port that they expect to make ship ments during the third quarter of 1919
 Montana contributed more than one-third of all the high grade ore shipped during the first six months of 1919, shipping 16,026 tons, as against 1O,O91 tons during the first quarter and 199, ,932 tons during the year 1918.
 Colorado shipped the second largest quantity of low grade ore in 1918, but in the first six months of 1919 shipped the second largest quantity of high grade ore, having shipped during this period more high grade than low grade ore.
 The largest shipper in California, the state which comes third in ship ment of high grade ore during the first six months, is the Buckeye mine, in San Joaquin and Stanislaus coun- ties, but the operators of this mine do not expect to make many more shipments in 1910.
 Nearly half the ore containing 10 to S5 per cent of manganese shipped during the first six months of 1919 came from Nevada. The quantity of ore of this grade shipped from Nevada during that period was 40,719 tons, which was about Half as much as the quantity of ore of the same grade shipped from that state during the year 1918.
 The Cayuna Range, Minnesota, which in 1918 shipped the greatest quantity of low grade ore (625,009 tons) shipped only s,22o tons during the first six months of 1919. This de- crease is, however, probably largely due to the fact that the shippers of this district depend upon lake navi- gation for transportation, and the lakes are of course closed to naviga- tion during the first quarter of the year. An increase may be expected in shipments from this district during the remainder of the year.
 From the foregoing it may easily be seen that both the production and the demand for domestic manganese ore have been rapidly falling and are ap- no~or%1,, cf;I1 fo11;u0 -.