BRICK YARDS 203 



Geneva^ Cayuga Co. Five firms manufacture brick in this 

 locality. They are "W. G. Dove, C. Bennett, Goodwin & Dela- 

 mater, Mrs. Baldwin, The Torrey Park Land Co. The last- 

 mentioned company began operations in the spring of 1892; 

 their brick yard is some distance from the town. 



Lyons^ Wayne Co. The clay bed of F. Borck is about eight feet 

 deep. The upper portion of the deposit is yellow, the rest is 

 blue. Quicksand underlies the latter. Soft mud machines are 

 used to mold the brick. 



Ccmandaigua, Ontario Co. Burke & Mead's * works are about 

 three quarters of a mile southwest of the station ; their property 

 adjoins the N^. Y. C. R. R. track. The clay deposit, which covers 

 several acres, is basin-shaped and has a known depth of at least 

 20 feet. It is of a blue color, weathered to red above, and on 

 top of it is about a foot of peat. The clay after being dug in the 

 fall is stored under shed until spring when it is molded by dry 

 press machine. The brick are set directly in the kiln. "Water 

 smoking is done with wood and subsequent firing with oil. The 

 blue clay burns buff and the other clay a red, so that by mixing 

 the two a speckled brick is obtained. This firm has not been in 

 operation very long. 



The clay is quite siliceous, as the following analysis shows, and 

 is similar in composition to the red terra cotta clay at Glens 

 Falls. The composition is as follows : 



Silica 62.23 



Alumina 16.01 



Peroxide of iron 6 96 



Lime 1.24 



Magnesia 2 . 21 



Alkalies 5 .08 



93.73 



Rochester^ Monroe Co. The Rochester Brick and Tile Manu- 

 facturing Co. is located on Monroe St. at the eastern end of the 

 city. Adjoining this is the German Brick and Tile Co. The 



* Since this report was written the firm name has been changed to " Empire Pressed Brick Co." 



