BRICK YARD8 



187 



adjoins Yan Dusen on the south. The clay lies on a ridge of 

 shale which rises steeply from the shore to a height of 60 feet. 

 The brick yard is at the foot of the cliff and was started in 1891. 

 Plows and scrapers are used to mine the clay which is of a 

 yellow color, and overlaid by three feet of loam. Carts are used 

 for hauling the clay. About a mile below this are the yards of 

 C. H. Littlefield, A. Eose & Co. and D. C. Overbaugh. The 

 three are close together. A ridge of shale rises steeply from the 

 river and behind this the clay lies. The terrace here is 150 feet 

 high, and borings which have been made show a depth of as 

 much as 60 feet (see table). The clay is quite dry, and mostly 

 yellow. It is worked by picks and undermining. Carts haul it 

 to the edge of the cliff, where it is sent down shutes to the tem- 

 pering pits. The drying is done on pallets at Rose's yard. 



Arlington, Dutchess Co. Flagler 6c Allen. The clay deposit which 

 is yellow is situated a half mile eistof Poughkeepsie and has an 

 extent of about 40 acres of clay, it averages from six to eight feet in 

 depth. This is easily worked, there being only a stripping of 

 six inches of sod. Underneath the yellow is considerable blue 

 clay, of which the yellow is of course the weathered portion. 

 The clay is tempered in soak pits and about 20,000 brick are 

 made daily. Ths machinery is run by horse power. Repressed 

 brick are also made. The clay burns a cherry red. 



H. R. Rose's brickyard is also situated at this town and about 

 three miles east of the Hudson river. The clay deposit, which 

 has an extent of 60 acres, is yellow in color and eight feet thick. 

 A blue clay is said to underlie the yellow. The bricks are 

 molded in soft mud machines operated by horse power. 



Barrytown, Dutchess Co. There are deposits of clay along 

 the river at this locality but they are not being worked. The 



following is an analysis of them: 



Silica 59 . 81 



Peroxide of iron and alumina 22 . 00 



Lime 4.35 



Magnesia 2.2^ 



Moisture .37 



Combined water and organic matter 7 . 89 



Alkalies, not determined 



96.71 



