Excerpts from the report: Results of tests on fiber and manufacturing properties of the principal varieties of cotton produced commercially by cotton improvement groups for the 1954 crop are summarized in this report. Test data for cottons harvested late in the season are included as well as results that were published in monthly reports from July through December. The cottons for which test results are reported are grouped according to processing procedures employed in making the spinning tests. This facilitates comparisons of the performance in processing of the principal varieties of cotton as produced in the various areas throughout the Cotton Belt.