476 



AGRICULTURE 



long. Split each specimen, then smooth and sandpaper the 

 flat side and ends and spread a coat of shellac over the fin- 

 ished parts. Learn to identify each specimen both by the 

 bark and by the texture and grain. 



Power spraying of trees. 



2. Gather and preserve in wide-mouthed bottles samples 

 of the seeds of all the trees in your vicinity. Learn to 

 identify these seeds. Plant some of each, and learn to iden- 



