ADIRONDACK MAGNETIC IRON ORES 7 



is on a firmer basis than ever before, due to the improved methods 

 of preparing the product for the market. By the addition of 

 milling plants to the installations, the mines are now able to ship 

 their output in the form of concentrates, which contain smaller 

 amounts of phosphorus and sulfur and higher percentages of 

 iron than the crude material formerly marketed. The concen- 

 trates are in wide demand for mixture with the leaner ores of 

 other districts and command a price above the average. 



While the local charcoal industry which had long been the support 

 of many small workings was completely extinguished during the 

 depression of the last decade, there are now two coke furnaces in 

 operation locally on Adirondack ores. The furnace recently built 

 at Standish, Clinton co., manufactures a superior grade of low- 

 phosphorus iron from the Lyon Mountain concentrates. The Port 

 Henry furnace is run mainly on foundry irons, using the Mineville 

 ores. The surplus product of the mines from these operations is 

 sold to furnaces elsewhere in the State and in Pennsylvania. 



The titaniferous magnetites which hitherto have been neglected 

 almost completely may add materially to the output of the region 

 in the near future. Their development is already in prospect at 

 Lake Sanford, where there are enormous bodies of the ores, excep- 

 tionally situated for convenient working. The ores possess impor- 

 tant advantages in their low phosphorus and sulfur, though the 

 titanium content has been generally regarded as presenting diffi- 

 culties to their reduction in the blast furnace. Under the present 

 management of the enterprise at Lake Sanford a thorough test of 

 the question as to their adaptability may be expected. 



Acknowledgments. The courtesies extended by the mining com- 

 panies and others interested in the development of the Adirondacks 

 have been of invaluable aid in the preparation of this report. Much 

 of the information relating to ore analyses, mine maps and sections, 

 'magnetic surveys, drill records, etc. has been secured through their 

 agency. Some of those who have contributed in this way and to 

 whom special recognition is due are: Messrs S. Norton, superin- 

 tendent, and S. Le Fevre, engineer, of Witherbee, Sherman & Co., 

 Mineville; W. T. Foote, Port Henry; J. N. Stower, Plattsburg; 

 H. H. Hindshaw, New York, at one time geologist for the Delaware 

 & Hudson Co.; N. V. Hansell, New York, formerly engineer at 

 Lyon Mountain; C. S. Hurd, New York; W. L. Cumings, geologist 

 for the Bethlehem Steel Co., South Bethlehem, Pa. ; M. H. Newman, 

 Madison, Wis.; and the Oliver Iron Mining Co., Duluth, Minn. 



