EXPERIMENT STATION REPORT. 295 



mustard leaves, but great changes in the leaves of lettuce and 

 corn. The corn leaves became much narrower in comparison 

 with their length, while the lettuce leaves became long-stalked 

 with small lamina. 



Search is being continued for plants which will lend themselves 

 well to such experiments. It seems so far that beans, Bryophyl- 

 lum, radishes, Kochia, and corn furnish good examples of differ- 

 ent effects of shade ; but all except beans and Bryophyllum suffer 

 too severely in the shade. An effort will also be made to devise 

 some way of standardizing and controlling the actual degree of 

 shade. 



