Excerpt from the report: The objectives of this study were: (1) Development of high-speed in-line egg sizing and new packaging methods and equipment as integral parts of a mechanized grading line developed by the Department of Agriculture in an earlier study ; (2) modification of the original experimental line to include the new equipment; (3) evaluation of the performance of the modified line in terms of grading, sizing, and packaging accuracy, and product condition ; (4) determination of labor requirements for operation of the line under commercial conditions; and (5) comparison of the labor and equipment costs of the modified line with the costs of the less highly mechanized operations studied during tests of the original line.