50 NEW YORK STATE MUSEUM 



ton, Oneida co., C. A. Borst has been the only active producer 

 in the last few years. 



Dutchess county limonites. According to current reports in 

 the press, plans are under consideration for the reopening of 

 the Kelly mine in the Salisbury limonite district. The Kelly 

 Iron Ore Corporation is said to have taken a lease of this prop- 

 erty which is situated in the town of Northeast near the Con- 

 necticut State line. The mine was last worked in 1888 as an 

 open cut, but if the present plans are made effective it will be 

 exploited hereafter by underground methods. It has convenient 

 shipment facilities over both the New York Central and the 

 New York, New Haven and Hartford lines. 



It has also been reported that the Dover mine is under lease 

 for the purpose of operation. This mine is situated in the town 

 of Dover and at one time supplied ore to the Dover furnace. 



The production of limonite in this region was once of con- 

 siderable importance. After the year 1885, when the Lake 

 Superior shipments began to develop rapidly, the output stead- 

 ily diminished and one mine after another suspended work. 

 The only mine which has been operated in recent years is the 

 Amenia which was closed down in 1906. The prices of ore 

 have since advanced to such an extent that the operation of 

 the mines is again receiving consideration. 



MILLSTONES 



The production of millstones, although much smaller than 

 formerly, is still an important industry in certain sections of 

 Ulster county. This area furnishes nearly all of the millstones 

 produced in the United States, the other producing states being 

 Pennsylvania, Virginia and North Carolina. In addition to the 

 domestic supply a large number of millstones and buhrstones 

 are annually imported from France and other European 

 countries. 



The - New York stone is known as Esopus stone, a name de- 

 rived from a former name for Kingston, which was an impor- 

 tant shipping point. It is a firm white conglomerate varying in 

 fineness from that of a coarse sandstone to a coarse conglom- 

 erate with some pebbles 2 inches in diameter. It is composed 

 of partially rounded whitish quartz pebbles in a silicious matrix. 

 The stone is obtained from certain beds of Shawangunk grit, 

 a rock lying unconformably upon the Hudson river shales and 



