RECORDS OF OBSERVATIONS, SCRIPPS INSTITUTION OF OCEANOGRAPm: 



TABLE 1 

 Summary of Observations on the "E. U. Scripps" Cruises, 1938 



Point Conception and outside a line from Point 

 Conception passing west of San Nicolas Island. 

 The greatest difficulties were encountered dur- 

 ing Cruise II when, in ten days, only two lines 

 of stations could be completed owing to bad 

 weather and when the time available was too short 

 to make it possible to continue the program. 



Four or five of the staff members or assistants 

 at the Scripps Institution took part in each of 

 the cruises. These men and four of the ship's 

 crew divided the day into six-hour watches. The 

 stations were therefore occupied all day and 

 night, and work went on continually during the 

 cruise. 



Dr. R. T. Young, Jr., of Worcester Polytech- 

 nic Institute, took part in Cruise IV, during 

 which he made measurements of the transparency 

 of the water between the surface and 60 meters 

 at twenty stations. The results of this work 

 have been reported in the Journal of Karine Re- 

 search.^ 



Table A contains interpolated values of tem- 

 perature, salinity, and oxygen content at stand- 

 ard depths. These values have been read off 

 from curves showing the vertical distribution of 

 the different properties; but prior to construct- 

 ing these vertical curves, T-S curves and, usu- 

 ally, T-Og curves were constructed in order to 

 discover possible errors. The last three columns 

 of the table of results contain the values of c^t 

 as derived from McEwen's tables of 1929, anoma- 

 lies of specific volume, 5, and the anomalies of 

 the dynamic depth AD of the standard isobaric 

 surfaces indicated by the argument in the first 

 column of the table. These anomalies have been 

 computed from Sverdrup's tables of 1934. A sepa- 



Jour. Mar. Research, vol. 2, no. 2, 1939- 



rate table. Table B, contains interpolated values 

 of the phosphate-phosphorus content at standard 

 depths. For financial reasons it was impossible 

 to follow the recommendation adopted by the In- 

 ternational Association of Oceanography at its 

 meeting in Edinburgh in 1936 that both observed 

 and interpolated values be published. The ob- 

 served values can be obtained in manuscript form 

 from the Scripps Institution of Oceanography. 



Charts have been prepared in order to show 

 the essential results from the cruises. A very 

 brief description of these by R. H. Fleming is 

 included in this report, but a detailed discus- 

 sion will be postponed because it has been con- 

 sidered essential to present the observations at 

 the earliest possible time. 



Table C shows the number of diatoms found in 

 the different catches and the percentage of the 

 total number which appeared to be in poor condi- 

 tion. The phytoplankton collections were made by 

 means of the Allen closing bottle which has a ca- 

 pacity of five liters. The water sample brought 

 up from the desired depth was filtered through a 

 net of number-25 bolting silk. A brief summary 

 of the more outstanding results by IJ. E. Allen 

 is included elsewhere in this report. 



I take great pleasure in acknowledging the en- 

 thusiastic cooperation of the crew of the "E. W. 

 Scripps." The staff members and assistants of 

 the Institution who took part in the cruises and 

 in the working up of the data deserve special 

 credit. These are Messrs. U. E. Allen, C. Davis, 

 R. H. Fleming, C. Heusner, K. W. Johnson, E. C. 

 La Fond, J. Lyman, E. G. Moberg, S. Rittenberg, 

 L. Simpson, H. U. Sverdrup, R. B. Tibby. 



Assistance in the preparation of these materi- 

 als was given by the personnel of Works Progress 

 Administration, Official Project No. 665-0V-3-141. 



