United States Geological Society
Clay Products of the United States for 1908
With Corresponding Totals for 1907
Total Value of Clay Products Produced:
- Ohio (19.99%)
- Pennsylvania (11.14%)
- New Jersey (9.24%)
- Illinois (8.68%)
- New York (6.7%)
20. Minnesota (3.13%)
Source:
Brick and Clay Record
Kenfield-Leach Company, Chicago, IL
Volume XXXI, Number 2, August 1909
Pages 44 and 45
Source:
Brick and Clay Record
Kenfield-Leach Company, Chicago, IL
Volume XXX, Number 3, March 1909
Page 2
Source:
Brick and Clay Record
Kenfield-Leach Company, Chicago, IL
Volume XXXI, Number 2, August 1909
Page 42
