266 
CEMENT MATERIALS AND INDUSTRY. 
[BULL. 
dried in tunnels and burned in dome kilns, 16 of which are in opei 
tion. Blake crushers, Millen crackers, and Sturtevant rock emei 
mills are used in the reduction of the clinker. The cement is mai 
keted as Millen's Wayland. 
Analyses of the raw materials and of the finished product, furnished 
by the company, follow. 
Analyses of (day, marl, and cement, Mount Morris, N. Y. 
Silica (Si0 2 ) 
Alumina (A1 2 3 ) 
Iron oxide ( Fe 2 3 ) 
Lime carbonate (CaC0 3 ) 
Lime (CaO) 
Magnesium carbonate (MgC0 3 ) 
Magnesia ( MgO) 
Lime sulphate (CaS0 4 ) 
Sulphur trioxide (S0 3 ) 
Moisture and organic matter . . . 
Alkalies and loss 
Clay. 
45.21 
19.08 
6.74 
19.94 
3.27 
1.55 
4.17 
Marl. 
Cement. 
0.42 ! 21.08 
1.08 j 9.56 
93.5 ' 
64.68 
2.13 
1.85 
2.01 
1.93 
86 
22. 
9. 
63. 
2.04' 
.... 
1.25 
n 
The analyses of the clinker were made for the company by Dr. F. E. 
Engelhardt, of S}*racuse, N. Y. 
The plant of the Wayland Portland Cement Company is located at 
Perkinsville, in the town of Wayland, Steuben County. It was erected 
in 1896 and has operated continuously to date. 
The materials used are a light-colored marl, found in a deposit 2 t( 
14 feet thick, overlain by 6 inches to 3 feet of muck, which occurs in 
a marsh near the works, and light-gray (Pleistocene) cla}' from Mourn 
Morris, Livingston County. The marl here, as at Millen's, is no 
underlain by clay. The following analyses of the raw materials were 
furnished by the company: 
Analyses of marl and day from Mount Morris, N. Y. 
Silica (SiO a ) 
Alumina and iron oxide (A1 2 3 and Fe. 2 3 ) 
Lime (CaO) 
Magnesia (MgO) 
Loss on ignition 
Marl. 
Clay. 
0.54 
53.5 
.56 
24.2 
54.4 
5.1 
2.34 
2.1 
42.2 
14.1 
The clay is dried over steam pipes, broken to about one-fourth 1 1 
one-half inch size in a Potts disintegrator, and sent through 
