698 NEW YOKK STATE MUSEUM 



C. G. Griggs & Co.'s brick yard is located along the river about 

 ball' a mile nortli of Low Point station. An opening bas been 

 made for clay about 800 feet east of tlie yard ; the clay as exposed 

 at present is 20 feet thick and overlain by 2 feet of loam. 100 

 feet farther east, and at a sKghtly higher level, sand for tempering 

 has been dug to a depth of 8 feet without finding clay. The clay 

 is hauled in carts to the yard. 



Roseton, Orange co. There is a remnant of a terrace at this 

 locality 120 feet high. From this J. J. Jova and Rose <fe Co. 

 obtain their clay. The former has 80 acres, the latter 40. The 

 clay is mostly blue and rises to a bight of lO'O' feet above the 

 river. At Jova's upper yard it is underlain by limestone and 

 overlain by sand. On top of the clay at his lower yard are 10 

 to 15 feet of sand and gravel. 



A well was sunk from river level at Jova's, passing through 

 the following: 



Blue clay 80 feet 



Quicksand 25 " 



Loose sand and gravel . 75 " 



180 " 



Adding to the above section 100 feet of clay above river level 

 gives us a total thickness of 180 feet of clay. At Rose & Co.'s 

 yard, which adjoins Jova's on the south, it is said, a well was 

 sunk 135 feet through blue clay. Adding to this 108 feet of 

 clay above mean tide gives us a bed of clay 243 feet thick. The 

 terrace which the clay underlies at Roseton extends back from 

 the river several hundred feet into a; reentrant angle of the hill. 

 The clay contains little sand and is worked in benches. Carts 

 are used to haul the clay. South of Roseton station is a bank of 

 sand of alternating yellow and grayish black layers, which has been 

 used for tempering, but is said not to give as good results as that 

 on Jova's premises. 



