12. Vertical distribution of phosphate along Section C during 



IWSOE '69 11 



13. Vertical distribution of nitrate along Section C during 



IWSOE '69 , 11 



14. Vertical distribution of silicate along Section C during 



IWSOE '69 12 



15. Vertical distribution of oxygen along Section C during 



IWSOE '69 12 



16. Vertical distribution of preformed phosphate along Section C 



during IWSOE '69 13 



17. Vertical distribution of preformed nitrate along Section C 



during IWSOE '69 13 



VI 



