Elements of Quality in Cottonseed 
The standard method of grading cottonseed is based, (l) on the 
development of the seed, as indicated "by the quantity of oil and 
protein elaborated during growth, oil and protein being the two most 
valuable constituents; (2) on the deterioration that has taken place 
in the seed between the maturing of the bolls and the time of sale, 
as indicated by the percentage of free fatty acids in the oil; and 
(3) on the quantity of moisture and foreign matter, in deleterious 
quantities, that have been absorbed by or incorporated in the seed bo- 
fore sale. 
To measure the development of the seed constituents, a method 
is provided for determining a quantity index. To measure the deterio- 
ration and to take into account the excesses of moisture and foreign 
matter, a method is provided for determining a quality index. To 
determine the grade or relative value in relation to a base, a method 
is provided for combining the quantity index with the quality index, 
the result being the grade. In practice, the grade is used as a value 
index related to the price quoted at the time of sale for cottonseed 
of the base grade. 
Sampling and Analysis Standardized 
The necessity for the accurate sampling of cottonseed and for 
the accurate chemical analysis of the samples was recognized as a 
problem precedent to the establishment of the standard grades. There- 
fore, coincident with the promulgation of the cottonseed standards, 
approved methods were published for both the drawing and the handling 
of samples and for the procedure to be followed in making chemical 
analyses and calculating the grade of cottonseed, 1/ 
1/ United States Department of Agriculture. Bureau of Agricultural 
Economics, The official standards of the United States for the 
grading, sampling, and analyzing of cottonseed sold or offered for 
sale for crushing purposes. U. S, Dopt. of xgri ■. Service and 
Regulatory Announcements (B.A.E.) 133. 10pp. 1932. 
Meloy, G. S, Development of standards for grades of cottonseed. 
31pp. United States Department of Agriculture, Bureau of Agricul- 
tural Economics, 1935, (Mimeographed.) 
United States Department of Agr - '. culture. Bureau of Agricultural 
Economics, Methods of drawing and preparing official samples of 
cottonseed. For licensed cottonseed samplers. Approved by the Act- 
ing chief... June 7, 1938, 4pp. 1933, (Mimeographed.) 
United States Department .of Agriculture. Bureau of Agricultural 
Economics, Methods of chemical analysis and grade calculations for 
cottonseed, For licensed cottonseed chemists. Approved... 
June 7, 1938. 11pp. 1938. (Mimeographed.) 
