T T T t ' ' Cs'3? STANDARD ( 0.67 MEV : 1000 T Co’ STANDARD 4 17MEV 1.33 MEV 7 “. Qn V\ e O~ — - =a ne 65 n + hr 100 On ° \ r _ 2 | . C/M _ \ ng \ x 1 7 10 \ MARSH “PLANK- _! TON *54 7° 1 NX FLYING \ FISH “LIVER : ° WATER “54 a . i | 0.2 i 0.4 i 0.6 i 0.8 MEV 4 1.0 1 1.2 — 4 = 1 1.4 On. soxi>. Fig. |!. Gamma spectra of samples of sea water, plankton , and flying fish liver from Marsh station 54. prays