Number Page 
16 Interlaboratory Comparison of DEHP Measurements 
of Split Samples.71 
17 Determination of Sediment Composition . 73 
18 Concentration of Phthalates in Oysters and 
Related Sediments . 80 
19 Determination of a Concentration of Tin Which Would 
Select for Tin-Resistant Microorganisms . 89 
20 Physical Data for April 1978 Cruise/Excursion .... 92 
21 Physical Data for July 1979 Cruise/Excursion . 92 
22 Viable Counts of Bacteria from April 1978 Cruise ... 93 
23 Viable Counts of Bacteria from July 1979 Cruise ... 94 
24 Production of Volatile Tin in Media Inoculated 
with Sediment.96 
25 Tin in Water and Sediment Samples.97 
xm 
