Sal. 



Cu 



P0 4 

 In. 



Tot. 



Water temperature in cen- 

 tigrade recorded to the 

 nearest 10th of a degree. 



Salinity, parts per thou- 

 sand. 



Copper, /ig.at./ 1. 



Phosphate 



Inorganic phosphate, /ig. at. 



PO4-P/I. 



Total phosphate, fig.a.t. 



PO4-P/I. 



Depth 



NO3-NO2 Nitrogen, /ig. at. NO3-NO2- 

 N/l. 



Part n 



All column headings are the same as 

 in Part I, with the exception of the fol- 

 lowing: 



CA 



Tr. 



Depth is coded as indicated 

 below: 



1 Surface 



2 First intermediate 



3 Second intermediate 



4 Bottom 



Cloud amount coded as in- 

 dicated below: 



No clouds 



1 Less than 1/ 10 or 1/ 10 



2 2/10 and 3/10 



3 4/10 



4 5/10 



5 6/10 



6 7/10 and 8/10 



7 9/10 and 9/10 plus 



8 10/10 



9 Sky obscured 



Water transparency in feet 

 at which Secchi disc is visi- 

 ble, recorded to the nearest 

 j. 



z 



foot. 



