LINT PERCENTAGE AND LINT INDEX OF COTTON. 
lint index may be found in varieties differing greatly in their percent- 
ages of lint; in other words, that til's lint index is a measure of the 
abundance of the lint independent of the percentage of link There- 
fore, the number of bolls necessary to be picked to yield a bale of 
lint remains constant for each lint index regardless of the percentage 
of lint. 
Five-locked bolls to the number of 88,500 will yield a bale of cot- 
ton in all varieties having a lint index of 6, and 133,500 five-locked 
bolls will be required in all varieties having a lint index of 4. 
A variety of cotton which has a lint index of -1 and a lint per- 
centage of 33 will have seeds weighing 8.1 grains per hundred, or 12.1 
grams per hundred unginned seeds. (Table II.) A variety with a 
lint index of 5 and the same lint percentage will have seeds weighing 
10.1 grams per hundred, or 15.1 grams per hundred unginned seeds. 
Therefore, if the laborers pick at the rate of 1,500 bolls per hour and 
the average number of seeds is between 40 and 45 to the boll, 1,500 
bolls of the variety with the lint index of 4 will weigh 7,713.7 grams, 
or 17 pounds and 0.09 ounce. Fifteen hundred bolls of the variety 
with the lint index of 5 will weigh 9,626.2 grains, or 21 pounds and 
3.5 ounces, of seed cotton. Thus, there is a difference of 1,912.5 
grams, or 4 pounds and 3.4 ounces, per hour, or 24.8 pei cent in favor 
of the variety with the lint index of 5. In other words, the man 
picking in the variety with the lint index of 5 will gather the same 
quantity of cotton fiber in eight hours that the one working in the 
variety with the lint index of 4 will gather in 10 hours, and if both 
men work a full 10 hours, picking the same number of bolls per hour, 
the one in the variety with the lint index of 5 will have 24.8 per cent 
more pounds of seed cotton at the end of the day than the man work- 
ing in the variety with the lint index of 4. This may account for 
the fact that pickers often gather more cotton in a day in one man's 
field than in another's, and may also suggest a reason for the other- 
wise unexplainable aversion which pickers have for some fields. 
Table III. — Com pari son of two varieties of cotton grown in southern Georgia. 
Lint. 
Comparison of 5-locked bolls. 
Per 
cent- 
age. 
Index. 
Length. 
Weight 
of 10 
bolls. 
Number to the 
pound. 
Number required 
to yield one 
500-pound bale. 
Variety. 
Of 
seed 
cotton. 
Lint. 
Total. 
Per 
plant 
(at 
10,600 
plants 
per 
acre). 
Esti- 
mated 
percent- 
age. 
A 
36 
8.7 
6.4 
Indies. 
Grams. 
109 
72 
42 
63 
116 
158 
58,000 
79,000 
5.5 
7.5 
40 to 45 
B 
41 
20 to 25 
