107 
DENSITIES. 
Specimens of the bottom water taken on each bed, at all 
•stages of the tide, have been tested with the hydrometer and 
its readings reduced to a standard temperature of 60 degrees 
Fah. These results show a maximum density of the waters 
of Tangier Sound of 1.0164, which was found in the lower 
part, about the California Rock, at half hood tide. The min- 
imum density of l.Olll was found in the upper part of Fish- 
ing Bay, with the tide three quarter ebb. The following 
table shows the maximum and minimum density on each bed, 
with state of tide and remarks: 
