§ LITERATURE CITED 
(1) Cook, O. F. 
1923. malformations of cotton plants in haiti. Jour. Heredity 
14: 323-335, illus. 
(2) 1924. ACROMANIA, OR CRAZY-TOP, A GROWTH DISORDER OF COTTON. 
Jour. Agr. Research 28: 803-828, illus. 
' (3) Goss, R. W., and Peltier, G. L. 
1925. FURTHER STUDIES ON THE EFFECT OF ENVIRONMENT ON POTATO 
degeneration diseases. Nebr. Agr. Exp. Sta. Research 
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(4) McKinney, H. H. 
1925. A MOSAIC DISEASE OF WINTER WHEAT AND WINTER RYE. U. S. 
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(5) Macmillan, H. G. 
1923. POTATO MOSAIC MASKING AT HIGH ALTITUDES. (Abstract) 
Phytopathology 13: 39. 
(6) McMurran, S. M. 
1919. PECAN ROSETTE IN RELATION TO SOIL DEFICIENCIES. U. S. 
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(7) Orton, W. A., and Rand, F. V. 
x 1914. pecan rosette. Jour. Agr. Research 3: 149-174, illus. 
(8) Rand, F. V. 
1922. pecan rosette: its histology, cytology, and relation to 
other chlorotic diseases. U. S. Dept. Agr. Bui. 1038, 42 
p., illus. 
(9) Skinner, J. J., and Demaree, J. B. 
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(10) Smith, E. F. 
1920. AN INTRODUCTION TO BACTERIAL DISEASES OF PLANTS. 688 p., 
illus. Philadelphia and London. 
(11) Walker, M. N. 
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