48 BOTANICAL GAZETTE [JULY 
Table VI shows a comparison of the results of a number of 
potassium salts. All of the potassium salts are very effective in 
promoting the fire-holding capacity, with the exception of the 
chloride, acid sulphate, and mono-potassium phosphate, which 
TABLE VI 
LEAVES FROM PLATS FERTILIZED WITH MANURE ALONE 
Average (Average —— 
| Number of | Bumber.of | of seconds i 
teste ehissaeay Sage 
ee 
Se ee Oe ee § 
| 
he 
UnPawwHann | | 
