CASTALIA PORTLAND CEMENT COMPANY 
The Castalia Portland Cement Company was organized 
in 1897, with a capital of $150,000 which has been increased 
to $750,000. Its plant is located at Castalia, Ohio, with 
its general offices in Pittsburgh. 
Cement was first shipped from this plant twenty-three 
years ago. Many of the leading dealers in builders’ 
supplies in the United States who placed their orders with 
this company at that time have been ordering regularly 
aver since. They are today great boosters of the famous 
“Tiger” brand cement. This is certainly the highest 
testimonial the company could ask for regarding the quality 
of its product. Cement manufactured by this company 
has been used in the construction of some of the most 
important work throughout the country. 
Marl and clay are used in the manufacture of this 
cement which has always stood second to none in quality. 
It is made by what is known as the Wet Process. After 
the marl and clay pass through the grinding mills, the 
mixture goes to a system of correction tanks. The mix 
contained in these tanks is then accurately analyzed so as 
to assure the correct proportion of lime, alumina and 
silica required for the proper burning in the kilns. Owing 
to this method of controlling the raw mix, no other cement 
company turns out a more uniform cement as to fineness, 
color, crushing and tensile strength than the Castalia 
Portland Cement Company. 
In the present manufacture of cement, the Castalia 
Company uses special machinery for grinding the raw 
materials which has been constructed especially for its 
own particular need. Pulverized coal is burned in the 
kilus finely ground by mills built especially for this purpose. 
During the last three years this plant has been prac- 
tically rebuilt and is now equipped throughout with the 
most modern up-to-date machinery. Every department 
is operated by electric power. This improvement has 
greatly increased its output. helping the company to