244 THE CEREALS IN AMERICA 



478. Collateral Reading. 

 Cultivated Barleys. By John Percival. Agricultural Botany, pp. 481-492. London 



Duckworth & Co. (1900). 

 Results of Experiments at Rothamsted on the Growth of Barley for more than 



thirty years on the same land. By J. H. Gilbert. Rothamsted Memoirs, 



Vol. VI, pp. 1-29. London : Dunn & Chidgey (1890). 

 Barley. By Wahl-Henius. American Handy Book of the Brewing, Malting and 



Auxiliary Trades, pp. 449-463. Chicago : Wahl and Henxus (1902). 



