Punched Labels 



These labels are important time-savers. Each set oj 

 holes represents a specific plant or a different type of experi- 

 ment, the key to the labels being found in the record books. The upper 

 left hand label here shown might indicate, for example, that the branch 

 on which it is tied bears blossoms of the Sugar prune (one hole at base 

 of label), fertilized by pollen of the Conquest stoneless prune 

 (three holes at center of label). Such labels as this are 

 loosely attached to the stem of the plant that has 

 been pollenized or grafted. 1 hey are per- 

 manent, and they minimize mistakes. 



