28 N. C. AGRICULTURAL EXPERIMENT STATION. 
Table X represents the preceding table calculated on a different 
basis, and consists of the proportion of mineral ingredients con¬ 
tained in 100 parts of the ash exclusive of sand, carbonic acid, and 
carbon. 
Table XI shows the proportion of mineral ingredients and nitro¬ 
gen content in 100 parts of the tobacco dried at 100° C. While 
in general there are no large differences in the percentage of ash 
constituents by the leaf and stalk cures, there are some quite marked 
variations. 
The percentage of potash in the whole leaf bv the leaf-cure is 
several per cent, less than by the stalk-cure, while the reverse is true 
in the case of chlorine. It is known that the amount and composi¬ 
tion of the ash is constantly changing during the growth of the 
tobacco plant. There is, also, a marked variation in the leaves of 
different portions of the plant. It is probable, therefore, that the 
variations may be due to these causes. 
The first priming for the leaf-cure took place about a month pre¬ 
vious to the cutting for the stalk-cure, and many of the leaves from 
the first and second priming were classed with the best grades, but 
were lost or damaged in the stalk-cure The priming ot the lower 
leaves also changes the character of those remaining to a certain 
extent by causing an increased growth. 
