New Yorx AGRICULTURAL EXPERIMENT STATION. 188 
and the other used as a check. When they had reached a height 
of six to eight inches the plants were all in perfect health. Never- 
theless, upon pulling them up it was found that a majority in both 
boxes had perithecia of Chaetomium contortum on their pericarps. 
This proved that the Chaetomium was not parastic. The spores 
must have become attached to the barley seeds before they were 
planted. 
