Main Importations 85

Texas climate would produce a strong brew, but recurrent floods
brought the abandonment of this farm by 1909. In this and the
following year it was reported that tea produced found a ready
sale in America, but work to lower costs had to be continued. By
1911 George F. Mitchell had introduced successful pruning
machinery, and machine picking was being tried. Other optimistic
results in 1912 concluded abruptly the mention of the tea experi-
ments in the publications of the Department. The efforts of more
than a century have not yet established an American tea industry.

 BIBLIOGRAPHY
1. Ball, Carleton R., "The History of American Wheat Improvement," Agricultural
 History, IV, April, 1930.
2. Aberg, Ewert, and Wiebe, G. A., "Classification of Barley Varieties Grown in the
 United States and Canada in 1945," USDA Technical Bulletin No. 907, 1946.
3. Le Franc, Emile, Culture and Manufacture of Ramie and Jute in the United
 States. Washington: Government Printing Office, 1837.
4. Commissioner's Reports, r869, 187o, USDA.