Excerpts from the report: Month by month the revolution in packaging gains momentum. New packaging materials are being introduced and the qualities of conventional materials are being altered to meet specific needs. At the same time faster and more efficient ways to form, fill, and handle the package are being developed. This study was made to evaluate two milk containers recently introduced in American schools. One was the new tetrahedral paper container—"tetra" for short--oddly shaped, somewhat like a pyramid with a triangular base. The other was the 5-gallon dispenser can, well established in the commercial and industrial mass feeding field but relatively new and not widely known in schools. This study was undertaken to determine the comparative advantages and disadvantages of new and conventional containers used to supply milk to schools. Labor requirements and costs were an important phase of the study.