The wider the range of material the easier and the more accurate 

 the identification will be. 



Those who desire to collect and preserve material should proceed 

 in the same manner as one would in making general botanical col- 

 lections. The dried material may be secured on strong mounting 

 paper. The writer has found the "Riker Specimen Mounts" very 

 satisfactory for preserving and displaying the different parts of 

 trees. Different sizes are obtainable, which allows one to select 

 them in proportion to the size of the material to be preserved. 



