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This paper is the second of a series reported from the Utah Station on the transfer of dietary DDT to eggs and poultry tissues. The first paper was reported by Bryson et al. (1950) on the accumulation of DDT in poultry products. The published literature on this topic has been reviewed and reported by Bryson et al. (1950). EXPERIMENTAL THE alfalfa hay fed in this experiment was from the same field described by Harris et al. (1949). This alfalfa was dusted with 0, 1, 2, and 4 pounds of technical DDT per acre. The harvested hay was ground into meal and 15 percent of this meal was included in the laying mash. DDT was also added to a similar mash made from untreated alfalfa meal at levels of 0, 50, 100, and 200 p.p.m. These diets are reported in Table 1. The design of this experiment is as follows: A . . .