such occurrences were probably responsible for "spikes" in our otherwise 

 smooth curves. Had we not been " in situ ", these "spikes" would still be 

 attributed to errors in our sampling, fixing, and analysis. 



SUMMARY 



Mission 1-50 represented man's first attempt to carry out as closely as 

 possible j^ situ chemical analysis; the predictions that were made and the 

 hypotheses that were formulated were more than validated in the eleven 

 days of Mission 1-50, But this is not the entire story--it was merely a 

 start in what we hope to be the first of many such programs in which man 

 will be able to work in a laboratory on the ocean floor and carry out analysis 

 with a greater degree of accuracy than he has ever known previously. 



This work has provided for us an opportunity to pioneer in the field which 

 we all hope will grow; perhaps our greatest enjoyment comes from the know- 

 ledge that this scientific endeavor, like all true chemical research, did 

 indeed answer some fundamental questions for us, but, more importantly, it 

 served to raise many new questions that need to be answered. And many of 

 these answers will come only through effective use of manned underwater 

 laboratories. 



ACKNOWLEDGEMENT 



We wish to express our sincerest appreciation to everyone associated with 

 the TEKTITE II program, to the University of Miami, and to the National 

 Science Foundation for their support in permitting us to participate in 

 both missions of TEKTITE II. A special note of thanks is extended to 

 Beckman Instruments of Fullerton, California for their lending to us at no 

 charge a Beckman DU2 Spectrophotometer for our phosphate analysis. And 

 finally, a special note of thanks is extended to our wives who looked 

 forward to Mission 1-50 with as much apprehension as we did with anticipation. 



VI-21 



