4- fty te 100 fian should be odtained for a sample froma single sres. The sample to ¢con- tain the common larger forme of the reefs and neigndoring open waters with mere than five species involved, if possible. Pieh snould be frosen as soon after soileeting as possibdle. Rate meter reading of whole fish using a prove snould be made. Remove from frozen fien tissues of uniform size ant shape ts Cit converitently on a 1” to i$” place. weignt Jt is important that the sise and of the tissues be consistent. Tiseues to de assayed will de musele and liver, preferably from large fish so threat dissection of frosen tiseves will ve facilitated to cunform to (¢). Vests 2 7-*°? peter plated wet tiseves will then de araivzed for var... ..1 ‘- *&Se@ amounts of radioactive materials. All like cissues thus obtained will be placed ee in a Werirg Blendor and namogeni sed. Two or three samples of equal size will be re- acved crom the Blendor, dried in pliofilla bdegs and sent to Seattle for counting in the Mucieaeters.