m 
Over the Terrapin Sands the flood sets northwest, with a 
maximum velocity of 0.9 and a mean velocity of 0.7 of a 
mile per hour. The ebb sets southeast until near the buoy 
marking the shoal, where it turns to the southward. Its 
maximum velocity was 1.0 mile, and its mean velocity 0.9 
of a mile per hour. The currents over the Terrapin Sands 
were measured during spring tides, and after light breezes 
and calms had prevailed for several days. Over the Woman’s 
Marsh Eocks the flood sets about 1ST. H.W., until in the vi- 
cinity of Horse Hammock, where it turns to the northward 
and eastward. The ebb sets S. S.W. over the upper part of 
the bed, and to the southward and eastward over the lower. 
There is a strong set in and out of the opening between Tan- 
gier and Smith’s Islands. 
The maximum velocity of the flood was 0.7, and the mean 
velocity 0.6 of a mile per hour. The velocity of the ebb was, 
maximum 0.8, and mean 0.4 of a mile per hour. These cur- 
rents were also measured during spring tides. 
Along the eastern side of the Sound, below Jane’s Island 
Light, and over the several beds located on the eastern edge 
of the channel, the general set of the current is to the north- 
ward on the flood and to the southward on the ebb. The flood 
sets a little to the eastward or westward of north as the chan- 
nel changes in direction, and about the northern part of the 
Great Eock sets strongly to the northward and eastward into 
the Little Annemessex. The ebb current out of that river 
forms a strong tide rip where it joins the main current due east 
of Jane’s Island Light and on the northern part of the bed 
otf that light. 
The general set of the ebb is the reverse of that of the flood, 
and both currents follow the trend of the channel. 
Through the Thoroughfare, opposite the California Eock, 
the flood sets east into Pocomoke on the first three quarters, 
and west on the last quarter. 
On the ebb the set is westward on the first three and east- 
ward on the last quarter, and this irregularity is communi- 
cated, to some extent, to the waters over the California Eock. 
The maximum velocity of the flood current on the eastern 
