- 62 - Physical Decay of Samples Extensions into December 1955 of the nine decay curves of Figures 11, 12 and13, UWFL-42 show little change in direction. Gastric mill of a crab began to decay with semi-log linearity and changed between 200 and 300 days post shot to the log-log linearity now apparent in Figure 15. Muscle of a sea cucumber changed similarly. The other decay curves tabu- lated in Appendix Table XII of UWFL-42 have not yet been extended, but approximately straight-line log log curves may be expected.