2 - Samples drawn from a Pyrex carboy of water filled at the 

 previous 12:00 station and kept at sea temperature on che 

 deck in natural light. 



6 - Samples incubated in situ , i.e., by suspending them on a 

 wire at the depth from which the sample water was gathered. 



4035 . Cruise 35 of the HUGH M. SMITH . During the first pare of the cruise 

 in early August 1956, productivity measurements were made by Mikihiko Oguri 

 from the Botany Department, University of Hawaii around the island of Qahu in 

 the Hawaiian group. Murice 0. Rinkel was party chief. The second part of che 

 cruise, August to October, 1956 was a cooperative "EQUAPA.C" expedition in 

 which participated a number of oceanographic vessels proceeding within 15 . 

 degrees of the equator from 135° to 160° West Longitude. Primary productivity 

 work was done on this second part of the cruise by Rinkel, field party chief, 

 and Michel Angot of the Institut Francais d'Oceanie, New Caledonia (Austin, 

 1957). 



In addition to the standard Hawaii techniques various experiments were 

 carried out and are indicated by the following sjrmbols in technique column 

 39: 



1 - Incubation period usually about 15 to 30 minutes. The 



standard incubation (3 hours) paired with the short incubations 

 can be recognized by their similar location data. 



2 - Sample taken from a carboy filled at previous 1800. 



3 - Samples taken at 20-to-30 second intervals while the 



ship proceeded at 3 knots. 



4 - Sample from carboy and incubation period 25 minutes with one 



exception, the first one was incubated 45 minutes. 



8 - Samples taken at 3-minute intervals while the ship proceeded 

 at 3 knots. 



4037. Cruise 37 of the HUGH M, SMITH went into the Northern Marshall Atoll 



588 



