OYSTER BEDS OF JAMES RIVER, VIRGINIA. 
35 
presently and prospectively productive. The following data were 
obtained from the examinations made : 
Details of Examination of Kettle Hole Rock. 
Station 
num- 
Date of ex- 
amination. 
Mean 
depth 
of wa- 
ter. 
Character of growth 
of market oysters. 
Oysters caught per 
square yard. 
Estimated quantity oys- 
ters per acre. 
ber. 
Spat. 
Culls. 
Counts. 
Seed. 
Market. 
Total. 
133 
Aug. 17,1909 
Feet. 
10.0 
Dense 
8.5 
47.5 
10.0 
Bush. 
364 
Bush. 
138 
Bush. 
502 
155 
do 
13.5 
do 
5.0 
62.0 
7.5 
436 
104 
540 
156 
do 
11.5 
do 
1.5 
29.9 
7.8 
204 
108 
312 
157 
do. 
11.5 
do 
.0 
32.0 
8.0 
208 
111 
319 
159 
do 
9.5 
do 
.0 
44.6 
.7 
290 
10 
300 
360 
Aug. 26,1909 
11.5 
do 
5.0 
27.5 
11.7 
211 
161 
372 
361 
do 
11.5 
do 
2.1 
18.5 
7.6 
134 
105 
239 
362 
do 
10.5 
do 
8.1 
54.6 
9.6 
408 
133 
541 
363 
do 
8.5 
do 
6.5 
47.2 
6.1 
349 
84 
433 
364 
do....... 
7.5 
do 
7.6 
46.7 
7.9 
353 
109 
462 
365 
do 
8.0 
do 
9.6 
72.4 
6.5 
533 
90 
623 
158 
Aug. 17,1909 
12.5 
Scattering 
5.0 
34.6 
5.5 
257 
76 
333 
163 
Aug. 18,1909 
17.0 
do 
.7 
50.0 
6.9 
334 
95 
429 
359 
Aug. 26,1909 
11.0 
do 
.9 
3.8 
5.4 
31 
75 
106 
151 
Aug. 17,1909 
11.0 
Very scattering 
.0 
16.0 
4.0 
104 
55 
159 
152 
do 
13.0 
do 
.4 
43.3 
2.1 
284 
29 
313 
153 
do 
11.5 
do 
1.1 
13.3 
3.0 
95 
41 
136 
154 
do 
11.5 
.....do 
.2 
24.0 
3.3 
169 
46 
215 
369 
Aug. 26,1909 
11.5 
do 
7.9 
30.0 
2.9 
246 
40 
286 
164 
Aug. 18,1909 
14.0 
Depleted 
.0 
.0 
.0 
0 
0 
0 
165 
do 
16.0 
do 
.0 
.0 
.0 
0 
0 
0 
THOMAS POINT ROCK. 
As explained in the discussion of the preceding bed, there may be 
some question as to the name of this one, which lies between what 
has been called Kettle Hole Rock and Blunt Point Rock. It is 
entirely separated from the former by a swash channel carrying 
from 12 to 21 feet of water, but is connected with Blunt Point Rock 
by a narrow ridge of depleted bottom. The bed lies on and about 
two shoals which extend from the edge of the channel lying north 
of White Shoal Light. Its extent and condition are as follows : 
Oyster Growth on Thomas Point Rock. 
Character of growth of market oysters. 
Area. 
Oysters per acre. 
Estimated 
content of 
market 
oysters. 
Seed. 
Market. 
Dense 
Acres. 
76 
118 
100 
127 
Bushels. 
168 
170 
103 
80 
Bushels. 
115 
71 
51 
21 
Bushels. 
8,745 
8,378 
5,100 
2,667 
Scattering 
Very scattering 
Depleted 
Total 
421 
24,890 
The dense. growth of market oysters is in three patches, all lying on 
or close to the shoaler parts of the bed in water ranging from 5 to 8 
feet at low tide. The growth is sufficiently prolific to yield to the 
tonger about 10 bushels of marketable oysters per day. 
