National Geographic : 1941 Feb
Cotton: Foremost Fiber of the World Some Day Your "Overhead" May Include "Cotton Sandwiches" Heavy, loose-woven cotton fabric is pressed into a cement mix to reinforce these shingles on a Jackson, Mississippi, home. The flexible forms are hoisted on a metal palette to be put in place. This innovation in roofing was invented and patented by a Delta planter. Photographs by Willard R. Culver Fingers Sensitive as a Pianist's Pull Fibers Parallel to Judge Staple Lengths "This is what we sell-lighter than most feathers-and we ship it in 500-pound packages," said the sampler. Difference of a sixteenth of an inch in average lint length runs into dollars in bale prices.