500 ANNUAL REPORT SMITHSONIAN INSTITUTION, 1960 



1920-24 

 Palmeb, Abtuue W. 



1924. The commercial classification of American cotton. U.S. Dept. Agr. 

 Circ. 278, 35 pp., illus. 



1925-29 

 Chandleb, E. E. 



1926. A new method for determining the strength of cotton. U.S. Dept. 



Agr., Bur. Agr. Econ., 16 pp., illus. 

 1926. A new mechanical method for determining the length of cotton fibers. 

 U.S. Dept. Agr., Bur. Agr. Econ., 38 pp., illus. 

 MOORB, J. H. 



1928. A method for measuring the "drag" of cotton fibers and the relation 



of certain physical properties of the cotton fiber to yarn quality. 

 North Carolina Agr. Exp. Stat. Techn. Bull. No. 33, 43 pp., illus. 

 NiCKERsoN, Dorothy. 



1929. A method for determining the color of agricultural products. U.S. 



Dept. Agr. Techn. Bull. No. 154, 32 pp., illus. 

 Webb, Robert W. 



1929. Troblems and research methods in cotton ginning. U.S. Dept. Agr., 

 Bur. Agr. Econ., 13 pp., illus. 



1930-34 

 Farb, Wanda K. 



1931. Cotton fibers. I. Origin and early stages of elongation. Contr. 



Boyce Thompson Inst., vol. 3, No. 3, pp. 441-458, illus. 



1933. Cotton fibers. III. Cell divisions in the epidermal layer of the ovule 



subsequent to fertilization. Contr. Boyce Thompson Inst., voL 5, 

 No. 2, pp. 167-172, illus. 



1934. Cotton fibers. IV. Fiber abnormalities and density of the fiber mass 



within the boll. Contr. Boyce Thompson Inst., vol. 6, No. 4, pp. 

 471-478, illus. 

 Farr, Wanda K., and Clark, George L. 



1932. Cotton fibers. II. Structural features of the wall suggested by X-ray 



difi'raction analyses and observations in ordinary and plane-polar- 

 ized light. Contr. Boyce Thompson Inst., vol. 4, No. 3, pp. 273-295, 

 illus. 



Fabb, Wanda K., and Sisson, Wayne A. 



1934. X-ray diffraction patterns of cellulose particles and interpretations 

 of cellulose diffraction data. Contr. Boyce Thompson Inst., vol. 6, 

 No. 3, pp. 315-321, illus. 



NiCKERSON, Dorothy. 



1931. A colorimeter for use with disc mixture and color measurements in 



psychological terms. Joum. Optical Soc, vol. 21, No. 10, pp. 640-650, 

 illus. 



1932. Application of color measurement in the grading of agricultural prod- 



ucts. U.S. Dept. Agr., Bur. Agr. Econ., 36 pp., illus. 

 Pearson, Norma L. 



1933. Neps and similar imperfections in cotton. U.S. Dept. Agr. Techn. 



Bull. No. 396, 18 pp., illus. 

 Pressley, E. H. 



1933. A new type of cotton sorter. Journ. Amer. Soc. Agron., vol. 25, No. 2, 

 pp. 89-98, illus. 



