ICUSEUM 



. wlifle coming from a quarry not used for Portland cement, 

 P om similar beds, ai very good idea of the 



ia contente of these cement rocks. 



oquois Portland cement co. This company is erecting a plant 



Marl and clay will be used, in 



g pa] companies have been formed to work de- 



s vicinity, but data concerning their plans are not 



inable. 



Killen'l Portland cement works. After having disposed of their 



plant at Wan... I >iim,,l,_ to the Empire Portland cement 



T. Millen & Co. 1 their present plant at Wayland, Steu- 



:, co., which commenced producing in October 1S92. The 



ed by lire in July 1893, but were rebuilt and 



.an Bhippi] in in October 1893. 



The materials used are marl and clay. Tbe marl is obtained 

 m a swamp near the mill, about 185 acres of marsh land being 

 owned by the company. The marl deposit is about 6 feet thick. 

 Unlike the Onondaga county deposits, however, the marl bed is 

 not underlain by day, and the latter material has to be brought 

 om a bank near Mt Morris, in Livingston county. The clay 

 deposit there worked is one of a series which occur in the terraces 

 g Canaseraga creek and the Genesee river, extending 

 ntimionsly from Dansville nearly to Rochester. 

 The clay for cement is worked at a point about 4 miles south of Mt 

 Morris, and i- shipped over the Delaware, Lackawanna and West- 

 railroad t.. the works, a distance of about 20 miles. 

 The clay is dried over steam coils, ground in a Potts disinte- 

 • and mixed with the marl in a revolving mixer. The slurry 



S mills and made into bricks. These 



in tunnels, and burned in dome kilns, 16 of which 



Blake crushers, Millen crackers, and Sturte- 



y mills are used in the reduction, of the clinker. 



Tin :it is marketed as Millen's 'Wayland. 



