generally from the beaches seaward 

 to about 15 fathoms; outer shelf- -from 

 about 15 fathoms seaward to about 100 

 fathoms; and offshore- -mostly in the 

 Gulf Stream. This is illustrated in 

 figure 2, together with the stations 

 comprising each sub-area. 



Data fronr\ the special stations and 



standard station are excluded from 



this division and are presented sepa- 

 rately. 



Seasons 



Four general seasons are applied- - 

 winter (cruise nos. 1 and 5), spring 

 (cruise nos. 2 and 6), svimmer (cruise 

 nos. 3, 7, and 8), and fall (cruise nos. 

 4 and 9). Winter cruises were made 

 from January to mid-March, spring 

 cruises during April and May, summer 

 cruises from ntiid-June to September, 

 and fall cruises fronn October to mid- 

 December. 



General 



Salinity data used in compilation of 

 the various tables were the interpolated 

 and calculated data from the nine Gill 

 cruise reports. 



Basic salinities are given to the 

 hundredth of a part per thousand, and 

 averages to the nearest tenth of a part 

 per thousand. 



No data below 1,000 meters standard 

 depth are included- -such were avail- 

 able on only a few stations. 



Profiles of the sections, by cruise, 

 were published in the individual cruise 

 reports. 



Average surface water salinities for 

 the four seasons, and for areas near 

 the special stations and standard sta- 

 tion, are shown in figures 3 to 6. 



