Excerpts from the report: This report gives estimated costs of ginning cotton by cooperatives in high-capacity single-gin and two-gin plants in California and Texas. Estimates of costs are based on survey data. A brief report is also included on costs for more than two gins at one location. Cost and other information in this report will provide a guide for groups who plan to build or modernize single gins or add new gins at existing plants. The major purpose of this study was to determine the extent of advantage or disadvantage in cost of ginning that cooperatives can expect from operating two gins as compared to single gins. Grower members and others can then use this information when considering expanding gin facilities or modernizing present gins. Another use of the information is to help gins improve their efficiency. Higher costs than those estimated in this study probably indicate inefficiencies.