Three replicate lots of eggs, each divided into half-case (15 doz.) sets on the treatments used, were stored at 70° F. and 90% relative humidity for 35 days. Different sets of eggs were conditioned at 32°, 40°, 60°, and 70° F. before being placed in the humidity chamber, but no resulting effect of initial condensate on the eggs and packaging material was demonstrated.Under the conditions of this experiment, oil treatment by the best commercially applicable method, followed by packaging in sealed egg-case liner bags, was found to retard greatly the development of internal defects and severe external mould. Oil treatment alone was definitely beneficial, but the use of egg-case liner bags on untreated eggs was detrimental. While these experiments show that the method of oil treatment combined with bagging was efficacious in these laboratory scale tests, the results obtained from three small test shipments to Great Britain were not in agreement, and indicated that somewhat different storage conditions may be encountered in the export of shell eggs in non-refrigerated holds. The length of time of storage may also be expected to influence directly the degree of spoilage.Differential spoilage of eggs located in the central and top and bottom trays within the case, and at the periphery and in the interior of individual trays, was also noted under certain conditions. This is considered to indicate the importance of humidity gradients within the case.