CO 
Ci 
A 
Bi 
Bull. 3, Div. Veg. Pathology, U. S. Dept. of Agriculture, 1892. 

1st Quality. 
eee Se it | 
I 
AE ec 
ST 








aux. oO trts. 
Ist Quality. 
7 
To 
II 
ome 0/0010 000 | 
nA 

Ammoniacal Solution. 


ist Quality. 

Ist Quality. 






VI 




a | Mi vil ni 
ee hn 

Untreated. 
| } 
DRD OF TREATED AND UNTREA 
