:,i>4 



l'-ri.LETlN 167 



sugar seasons. The numbers of the strains selected, the dates 

 of isolation and the sources are as follows : 



Source 



Sour tree, Orchard 1 

 Second sour tree, Orchard I. 

 Third sour tree, Orchard I. 



Green sour sap employed in 

 making sirup 24 (p. 358). 



Green sap, Orchard II. 



Milky sap, various orchards. 



Greenish-yellow sour sap from 

 same tree as sirup 26 (page 

 358). 



Sour sap. 

 Sour sap. 



Sour sap. 



Sour sap, Orchard I. 



Sour sap, Orchard II. 



1 Doubtfully fluorescent. 



