196 NEW YORK STATE MUSEUM 



The clay is rather tough. It is loaded on cars which are 

 drawn by cable some 75 feet, up into the machine shed where it 

 is dumped into a disintegrator. It next goes to the pug mill for 

 tempering, and is molded in a Martin machine. Drying is done 

 on pallets and burning in scove kilns, the latter occupying about 

 seven days. The consumption is chiefly local. 



Ogdensburg, St Lawrence Co. Paige Bros.' yard is on Cedar 

 cor. Canton st. at southwest end of town. The clay is of a deep 

 blue color, the upper 10 feet being somewhat sandy. It has 

 been bored to a depth of 60 feet in places, but this depth 

 is not constant, and in spots the underlying limestone rises to 

 within a few feet of the surface. The sand for tempering has to 

 be brought two miles. The following is an analysis of the clay : 



Silica 49.20 



Alumina 17.47 



Peroxide of iron 6. 23 



Lime 7.86 



Magnesia 4.87 



Alkalies 9.82 



95.45 



Only common brick are made. Soft mud machines are used. 

 Drying is done in the sun and burning in scove kilns. The bricks 

 have been largely used in the consumption of the asylum build- 

 ings at Ogdensburg. 



Madrid, St Lawrence co. Three miles north of the depot is 

 the brick yard of Kobert Watson. The clay is of a blue color 

 and about 20 feet thick. The section is 



Yellow sand 3 feet 



Blue clay 20 " 



The bottom has not yet been struck. Horse power is used for 

 operating the machinery. The clay has to be tempered with 

 sand. Drying is done on pallets or in the sun. Burning takes 

 about one week. The consumption is local. 



Raymondville, St Lawrence Co. Coats Bros.' works are at 

 Kaymondville, about seven miles north of Norwood. The clay 



