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bulletin: museum of comparative zoology. 



southern slope the vertical range of salmity was greater (Station 

 10060, Fig. 30). A considerable vertical range in salinity, with more 

 or less regular increase from the surface downward, characterized 

 Stations 10062, 10065, (Fig. 30), 10066, 10070, 10072, (Fig. 31), 10075 

 (Fig. 33), and probably 10067, and 10068 (Fig. 32). And though 



ra.o 



31.8 .9 32 .1 .2 ,3 .4 .5 .6 .7 .8 .9 33 .1 .2 .3 .4 .5 .6 .7 .8 .9 34 



Fig. 33. — Salinity sections close to land. New York to Chesapeake Bay 

 (Stations 10069, 10075, 10079, 10080, 10081). 



there was a good deal of variation from station to station in the 

 precise rapidity of increase, as a whole the difference between surface 

 and bottom increased from northeast to southwest. At Stations 10063 

 (Fig. 30), 10066, 10069 (Fig. 33) and 10082 (Fig. 32), there was a 

 rapid rise immediately below the surface, followed by a bottom zone 

 of uniform salinity, 10-20 fathoms thick. The curves for Stations 

 10081, 10083, 10084, 10060, 10061, are the reverse, the surface layer 

 being nearly uniform with a rapid rise below. As a whole the water 

 was freshest near shore, saltest over the outer part of the continental 



_ 29.2 .4 .6 .8 30 .2 .4 .6 .8 31 .2 .4 .6 .8 32 .2 .4 .G .8 33 .2 .4 .6 .8 34 .2 .4 .6 .8 35 



Fig. 34. — Salinity sections on the continental shelf abreast of Chesapeake 

 Bay (Stations 10077, 10078). 



shelf, with a progressive rise in salinity from northeast to southwest 

 at stations occupying the same relative positions on the shelf. 



The salinity sections at the three Stations outside the 100 fathom 

 curve (10064, 10071, 10076, Fig. 35) are all of one type, fresh at 

 the surface, saltest in the intermediate layers, and growing slowly 



