136 KANSAS ACADEMY OF SCIENCE. 



Brothers Real Estate Company; soda ash and lime from the New- 

 Jersey United Zinc and Chemical Company, whose works are located 

 at Argentine, Kan. The state has not only the large glass factories^ 

 located at Coffeyville, Cherryvale, Independence, Caney, etc., but all 

 the materials necessary for this work within the state. 



CLAY PRODUCTS. 



Over a large area of the state of Kansas the clay shales form a 

 characteristic and thick formation. In the past ten years these have 

 been utilized in brick manufacture to a very considerable extent. 

 The brick industry is now prominent in the state, and at St. Louis 

 the brick and the shales were exhibited from the various brick-yards 

 of the state on a long pyramidal table. On one side were shown the 

 brick burned with coal fuel, and on the other side the brick burned 

 with natural-gas fuel. On account of the high quality of both grades, 

 the exhibit attracted much attention from brick manufacturers and 

 from the general public. The exhibit was thus carefully studied to 

 try and determine whether gas- or coal-burned brick were better. 

 Many compliments were given on the quality of the Kansas paving- 

 brick in this exhibit. 



Samples of the brick were taken by the representative of the War 

 Department, at Washington, to be tested at the United States arsenal 

 at Watertown, Mass., but these results will not be available for some 

 months. The brick for the Kansas exhibit were contributed by the 

 following firms : 



Atchison Vitrified Brick Company. 



Capital City Vitrified Brick Company, Topeka. 



Caney Brick Company. 



Cherryvale Brick Company. 



Clay Center Brick Company. 



Coffeyville Vitrified Brick and Tile Company ; plants at Chanute, Cherryvale^ 



CoflFeyville, and Independence. 

 Columbus Brick Company. 

 Federal Betterment Brick Company. 

 Fredonia Brick Company. 

 Fort Scott Vitrified Paving-brick Company. 

 Humboldt Vitrified Brick Company. 

 La Harpe Brick Company. 

 Lawrence Vitrified Paving-brick Company. 

 Missouri Valley Brick Company, Leavenworth. 

 Neodesha Brick Company. 

 Ottawa Brick Company. 

 Paola Brick Company. 



Pittsburg Paving-brick Company, Sycamore plant. 

 Salina Brick Company. 



The Coffeyville Vitrified Paving-brick and Tile Company made a 

 special exhibit of their ornamental hand-molded brick in a mantel 



