Ill 
be a much greater difference in the salinity of the flood and 
ebb than has been indicated by the hydrometer. 
CURRENTS. 
The general set of the currents in the Sound is north and 
south, following the main channel and diverging slightly 
about the mouths of the tributaries and straits. 
The arrows on the chart show the direction and the letters 
and figures the state of the tide and velocity per hour, in miles 
and tenths, at such stations as are preserved in the record. 
The influence of the wind has not been eliminated, and ac- 
counts for many irregularities, both of velocity and direction. 
About slack w T ater, especially of the windward tides, this 
influence was most apparent. 
In Fishing Bay the currents follow the general bend of the 
shores and channel, setting over the lower portion, on the 
flood, to the northward ; over the middle portion to the north- 
ward and westward, as far as Fishing Point and above that 
point and over the upper part of the bay, setting to the 
northward and eastward. 
The maximum observed velocity of the flood current was 
0.38 of a mile per hour. 
The ebb in each portion of the bay sets in an opposite di- 
rection to the flood. 
The currents about the northern part of the Were Point 
bed were measured during and after strong northeast winds,, 
which accounts for the set to the southward and westward,, 
and also for the slight velocity of the ebb, which was only 
0.15 of a mile per hour, the northeast wind having lasted for 
two days and having driven a good deal of the water out of 
Fishing Bay. 
Over the Shark’s Fin the flood current sets to the north- 
ward and the ebb to the southward and eastward, most of the 
latter apparently coming from Hooper’s Straits. 
Its maximum velocity was 0.4 of a mile per hour. The ob- 
servations of the strength of the flood current made on this 
bed, were too much influenced by the wind to be considered 
