3. In the Lab- 

 oratory: Pre- 

 paring for cul- 

 ture tests on 

 elm samples. 



The Story of 



The story of a wood sc 

 tree. In the photograp 

 struck suddenly causin 

 the leaves to wilt, turn 

 story on these pages t< 

 a tree is discovered. 



2. Branch samples, six to eight inches long, ready for laboratory test. 

 Attached card lists pertinent details and accurate location of trees. 



1. Branch samples 

 are cut from af- 

 fected parts of 

 tree for labora- 

 tory diagnosis. 



