696 NEW YOKE STATE MUSEUM 



StormMng, Dutchess go. About 1000 feet nortla of the station 

 is a clay deposit, chiefly yellow. It is worked by Mosher Bros. 

 The bank has slid considerably; it has a vertical hight of 50 to 60 

 feet. 



Cornwall on the Hudson^ Orange co. C'. A. & A. P. Hedges are 

 the only brick manufacturers here. Their yard is situated on the 

 West Shore railroad about a mile north of Cornwall station. They 

 have 27 acres of clay land. Blue and yellow clay are found in the 

 bank, the main portion of which is covered by delta deposits of 

 Moodna river. The clay layers are much compressed in places, 

 making it difficult to excavate and necessitating the use of picks. 

 The bank is worked in benches and the clay has to be hauled about 

 300 feet to the machines. The stripped sand can be used for tem- 

 pering. Many bricks are shipped to points on the ISTew York, On- 

 tario and Western railroad. 



Neiv Windsor^ Orange co. There are six yards here. They 

 obtain their clay from the escarpment of a terrace 110 feet high. 

 Their clay is both blue and yellow. Streaks of quicksand occur 

 in the blue. The yellow is dry and tough, and has to be worked 

 by undermining. In thickness the clay varies from 20 to 60 feet; 

 the layers are in many places contorted, and in some cases the 

 stratification has been obliterated. Overlying the clay are gravel 

 and sand; the latter is used for tempering. Most of the ISTew 

 Windsor clay permits the addition of very little water in tempering. 

 Ring pits and Adams machines are used at these yards. The yards 

 are all situated along the river, and ship their product on barges 

 or by the West Shore railroad. 



Dutchess Junction, Dutchess co. There are several brick man- 

 ufacturing firms having yards along the river south of Dutchess 

 Junction. They obtain their clay from the escarpment of an 

 80 foot terrace which extends from a short distance north of 

 Stonnking to Dutchess Junction. The clay has a fairly uni- 

 form thickness; the upper 4 to 8 feet are yellow, the rest blue. 

 The greatest thickness of clay known for this locality is at Aldridge 



