788 
BULLETIN OF THE BUREAU OF FISHERIES 
It seems, however, that these changes involve the Bay of Fundy to only a small 
degree at 100 meters or deeper, for in 1917 the salinity at that level changed from 
32.4 per mille on July 4 to about 33 per mille on September 3 at a station off Grand 
Manan (Mavor, 1923, p. 375). Values differing little from this are evidently to 
be expected in the bay at this depth at the end of most summers, witness Craigie’s 
(1916a) records of 33.3 to 32.4 per mille in 1914 3 and Mavor’s (1923) of 32.6 to 33 
per mille in 1919. However, sufficient water of high salinity flows into the bottom 
of the bay in late summer to maintain a more or less constant (though slight) differ- 
ential between lower values along its northern side and higher values in its trough, 
with the water along its Nova Scotian slope intermediate in salinity at depths 
greater than 100 meters instead of most saline, as it is at the 40-meter level (p. 783). 
Stations 
Fig. 151.— Salinity profile running from the eastern part of Georges Bank (stations 10223 and 1022G) across the Eastern 
Channel (station 10227), Browns Bank (station 10228), and the Northern Channel (station 10229), to the offing of 
Cape Sable (station 10230), for July 23 to 25, 1914 
PROFILES 
The relationship that the slope water of high salinity in the Eastern Channel 
bears to the shallows on either hand, and especially to the overflow over Browns Bank, 
is most graphically illustrated on the July profile (fig. 151), as is the fact that the 
eastern edge of Browns was its extreme boundary in that direction (and always has 
been in our experience) , where it gives place by abrupt transition to much less saline 
water in the Northern Channel, and so in toward the land near Cape Sable. The 
profile also corroborates the evidence of the charts to the effect that this water of 
high salinity was not overflowing at all on Georges Bank at the time. In fact, it is 
doubtful if it does so at any season, for we have found no evidence of such an event, 
either in spring or in summer. 
Calculated from Craigie’s hydrometer readings. 
