14 
BULLETIN 121, U. S. DEPARTMENT OF AGRICULTURE. 
mattress factories, etc. Ordinarily the bagging and ties sell for 
about one-half to 1 cent per pound. Some of the picker waste brings 
one-half to 2-J cents per pound. Flat strips sell for 60 to 70 per cent 
of the value of middling Upland cotton. Card strippings are worth 
70 to 80 per cent of the value of middling, and comber waste from 
the better grades usually sells at the price of middling Upland cotton. 
The second column in Table IX shows the waste that would have 
been removed if the comber had taken out the theoretical amount 
with the 23 to 25 per cent setting. The third column shows the 
pounds actually removed. The fourth column shows the difference 
between these two. while the last column shows the actual value per 
bale of this difference at 20 cents per pound, the price actually paid 
for this lj-inch cotton. 
Table IX. — The commercial calculation and actual comber waste per 500-pound 
oaic ai 28 to 25 per cent setting, with value of difference in dollars per bale. 
Variety. 
Commercial 
calculation, 
at 24 per 
cent. 
£"£ Difference 
removel * pounds. 
Difference 
in value 
at 20 cents 
per pound. 
Pounds. 
120 
120 
120 
120 
120 
102. 15 
80.75 
60.75 
109.05 
90.50 
17.85 
39.25 
59. 2o 
10.95 
29.50 
39.25 
S3. 59 
7. 85 
11.85 
Webber Xo. 1 
Webber Xo 2 
2.19 
5.90 
Delta 
120 
SO. 75 
:. 85 
Again, the figures shown in the last column are those for raw cotton 
at 20 cents per pound. However, in order to get the actual value of 
the difference at this point we must now take into account, as before, 
the tare, waste on pickers and cards, the invisible loss, and the aver- 
age actual comber waste of 17.46 per cent on the 23 to 25 per cent set- 
ting. These various factors make a total of 2>4:A7 per cent loss when 
the cotton has passed the comber, so that the actual value of the cot- 
ton from the comber is not 20 cents, but 26.90 cents per pound. 
Adding again the labor and overhead charges the cost to the mill of 
the cotton from the comber will be about 31 cents. Therefore, if the 
values as shown in the last column of Table IX are calculated on the 
basis of 31 cents per pound the Durango would be worth, per bale, 
$5.53; the Columbia, $12.26; the Lewis. $18.36; the Webber Xo. J, 
$3.39; the Webber Xo. 2. $9.14; and the Delta. $12.26 more than the 
commercial calculation on the 23 to 25 per cent setting. 
A comparison of the values given in the last column in Table VIII 
-hows that all the Carolina cotton, if averaged on the 13 to 15 per 
cent setting is better than the commercial calculation by S3. 17 per bale, 
while the Delta is $1.08 better. This shows a difference of $2.09 per 
