Our role in TEKTITE II as part of Mission 1-50 was successful to such an 

 extent that the National Science Foundation saw fit to fund a return visit 

 for two of us (PDC and RJD) at the conclusion of the TEKTITE II program. 



OBJECTIVES 



The objectives which we had hoped to accomplish during our TEKTITE II were 

 the following: (1) To determine the advantages of in situ sample collec- 

 tion and fixing and of chemical analysis performed at a stable station 

 (i.e.. Habitat) as opposed to analysis which cannot be done aboard ship 

 without significant loss of accuracy. (2) To provide the geologist, the 

 biologist, and the physical oceanographer as well as the chemist, with 

 useful quantitative information about diurnal fluctuations in pH, oxygen, 

 alkalinity, salinity, phosphates, calcium and magnesium, and internal wave 

 motion. (3) To provide two graduate students as an integral part of their 

 professional education with underwater habitat training in research. 

 (4) To train a nucleus of chemical oceanography personnel for subsequent 

 instruction in habitat research techniques. 



Figure 1. Photograph of PVC Sampler 



Figure 2. Photograph of Sample Back-pack 



VI-16 



