197 



APPENDIX TO CRUISES 



NUTRIENTS AND WATER PROPERTIES 



Station Temp. Depth Secchi Plankton PO, SiO^ NO DO NH 

 No. OC (Ft.) Disk at 50 ft ^ J J ^ 



Trans. (ml.) ^ g - a/L^^ g - a/L y^-a/L ral/L ^<^-a/L 



3906 13.10 19* lloOO 



3907 13,20 18 13.00 



*See section on light transmission in sea water. 



