11 . Weather . Weather is coded as indicated 

 in table 2, "Numerical Weather Codes - 

 Present Weather. " 



7 . Inorganic Phosphate . Values are given in 

 microgram atoms per liter to the nearest 

 0.1 unit. 



12. Clouds. Cloud type and amount are coded 

 as indicated in table 3, Cloud Type"; 

 and table 4, "Cloud Amount." 



Nitrate -nitrite . TTiese values are given in 

 microgram atoms per liter to the nearest 

 0.5 unit. 



13. Sea. Sea direction and amount are coded 



as indicated in table 5, "Sea Amount"; 

 and table 1 . 



14. Swell ■ Swell directions and amount are 



coded as indicated in table 6, "Swell 

 Amount" ; and table 1 . 



15. Visibility. Visibility is coded as indicated 



in table 7, "Visibility." 



Carbohydrates (Arabinose) . These values 

 are given in terms of milligrams per liter 

 to the nearest 0. 1 unit. Collier et al. 

 (1953) presented a technique for estimat- 

 ing certain elements of the organic 

 materials in sea water which react to the 

 test for carbohydrates . The carbohydrate 

 values are given as arabinose equivalents, 

 and are not necessarily the actual concen- 

 trations of carbohydrate substances . 



16. Water Transparency. Given as meters to 

 which a Secchi disc is visible . 



Subsurface Observations 



1 . Sample Depth . Observed (actual) depth of 

 each sample is given in meters. Inter- 

 polated values at standard depths are 

 also given. The standard depths in 

 meters are: 0, 10, 20, 30, 50, 75, 100, 

 150, 200, 2 50, 300, 400, 500, 600, 700, 

 800, 1000, 1200, 1500, 2000, 2500, 

 3000, and thence every 1000 meters . 



2 . Temperature . The centigrade temperature 



is given in degrees and hundredths . 



3 . Salinity . Salinity is given in parts per 



thousand to two decimal places . 



4 . Sigma-t. To convert to density divide by 



1000 and add 1 . Thus, a sigma-t value 

 of 22.35 converts to a density of 1.02235. 



5 . Dissolved Oxygen. These values are given 



in milliliters per liter to two decimal 

 places . 



6. Total Phosphorus . Values are given in 



microgram atoms per liter to the near- 

 est 0. 1 unit. 



10. Proteins (Tyrosine) . These values are 



given to the nearest 0. 1 unit as milligrams 

 per liter of protein material in sea water, 

 which reacts to the test for tyrosine . 



Biological 



1 . Plankton volumes (half- meter silk net), 



table 8. The position given is that at be- 

 ginning of the tow . The depth of the haul 

 is given from to the greatest depth 

 reached. The volumes as given are "wet 

 volumes" (procedures for determination 

 were given under methods in rejrort for 

 cruise 1). Very few samples contained 

 large organisms such as jellyfish (which 

 were removed), so that the volumes repre- 

 sent smaller organisms. 



2. Numbers of plankton organisms per cubic 



meter of water (half-meter net) , table 9. 

 The procedures for plankton tows, methods 

 for sorting and counting, and calculations 

 of numbers of organisms were described 

 under methods in report for cruise 1 . 

 Counts are given for major groups as in- 

 dicated . 



3 . Numbers of plankton organisms per cubic 

 meter of water (continuous plankton 

 sampler ), table 10. Description of this 



