202 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
Water fresher than 32%po was restricted to a narrow zone close to shore, y- 
extending from just north of Cape Ann to Monhegan Island, broadest 
(twenty-five miles) off Cape Elizabeth. 
In general there was a rise of surface salinity from west to east — 
across the Gulf, the water being 32.5% o some sixty miles off Cape Cod; 
— 
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MESSRS RES SSSSRSASE Ss 
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Fic. 44.— Salinity sections in the GuJf of Maine, from Massachusetts Bay to 
the eastern basin (Stations 10087, 10088, 10090, 10092, 10093, 10106). 
32.6%po in the centre of the Gulf, and 32.7%po near the Nova Scotia 
coast bank. But the increase was far from uniform, the course of the 
curves being distorted by an outrush of comparatively fresh water 
(32.2% to 32.5%o) off the west mouth of Penobscot Bay, and by 4 
