BRICK TAED8 217 



the clay is hauled to the machines in carts. It is tempered in 

 soak pits, with the addition of one third its volume of sand. 

 Hematite is also added in order to produce a good color in 

 burning. The bricks are dried on pallets or on open yards. 

 They are burnt in scove kilns, loaded on schooners and shipped 

 largely to Connecticut. Many also go to points on Long Island. 



Southold, Suffolk Co. Two miles east of the village is 

 C. L. Sanford's yard. The clay is similar to Sage's. Mr. San- 

 ford has about 29 acres of clay. It is worked chiefly by under- 

 mining, the working face being about 10 feet in height. In 

 places gravel is scattered through it, but in others it is very free 

 from stones. Borings have shown a depth of 65 feet of clay. The 

 clay and coal dust are put into rectangular soak pits and from 

 these are shoveled into the machine, the tempering sand not 

 being added until then. The drying is done on pallets, whose 

 total capacity is 154,000. Most of the product goes to Connecti- 

 cut by schooner. 



Below is given an analysis of the clay : 



Silica 59.05 



Alumina 22.11 



Peroxide of iron 6.5i 



Lime 2.19 



Magnesia 2 . 64 



Alkalies 6.22 



98.75 



Fisher Island, Suffolk Co. The extensive deposit of clay 

 at this locality is worked by the Fisher Island Brick Manufac- 

 turing Co., whose plant has a capacity of about 15,000,000. 

 The yards are situated on the north shore of the island between 

 Clay Point and Hawk's Neck Point. About 150o feet from the 

 shore is the bank of clay, which is of a reddish color and thinly 

 stratified, the layers of clay being separated by very thin ones 

 of sand. In most places, however, the mass has been dis- 

 turbed by glacial movements. There is a stripping of 20 or 30 

 feet of a whitish sand, the finer portions of which can be used 

 for tempering. Their present working face is 30 feet above tide 

 at its base, and the clay, it is claimed, has a depth of 40 feet at 

 28 



