USDA Farmers' Bulletin 1432 by O. F. Cook and R. D. Martin describes how Pima (Egyptian) and Upland cotton are grown in the irrigated Salt River Valley of Arizona. It covers variety selection, land selection and preparation, planting, cultivation, plant spacing and thinning, early, summer and fall irrigation, picking, and roller ginning. Photographs of Pima plants at different growth stages and a drawing of a planter attachment illustrate the text. It is agricultural rather than textile-craft material, useful as background on cotton fiber production.