Excerpts from the report Introduction: This supplement provides detailed technical and statistical data that are not included in the main report on this study, entitled "Handling Bales of Cotton in Public Warehouses -- Methods and Equipment." Engineers, management consultants, and others will find this supplement a valuable addition to the main body of the report, which compares existing methods of handling cotton in warehouses, describes improved handling methods, and evaluates the improved methods in terms of current practice. Labor requirement values in this supplement were developed for specific operations which could be conveniently combined into alternative operational patterns. The labor requirements shown apply to a given piece of work done by one worker, or a crew of workers, in a series of coordinated, continuous, and uninterrupted movements. Labor-requirement data included in this supplement were determined for various operations under the following general classifications: (1) Setup, (2) cleanup, (3) pickup and setdown, (4) transportation, (5) unloading road trucks or railroad cars, (6) weighing, (7) sampling, (8) stacking, (9) breakout, (10) loading road trucks or cars, and (11) feeding bales to the dinky press. This supplement explains how handling and equipment requirements and costs shown in the main report were computed. It also includes tabulations of standard data on manhours and elapsed time required for the individual handling operations. Man-hours developed from productive data were computed for specified operations. The combined manhour and equipment-hour costs provide a basis for comparing the relative efficiencies of the specified handling methods described in the main report.