92 Nebraska Agricultural Exp. Station, Research Bui. 12 
DESCRIPTION OF PLATE XII 
Arrangement of trees which were supplied with nutrient solutions, 
showing where water supply was controlled. 
Trees in three rows at the right and those in the foreground on 
the left are growing in nutrient solution. The jars were buried in soil 
to prevent injury to roots by heat. Solutions supplied thru small 
jars at 1. 
Trees in the left background grown in covered half-barrels. Water 
was added thru holes in the covers, in which corks were fitted. 
