SPAWNING AND SETTING OF OLYMPIA OYSTERS 465 
Table 15.— Percentage of adult oysters bearing embryos (E) and conchiferous larvae ( C) in dikes 5 and 
S (Oyster Bay) and dike B ( Mud Bay) 
Date 
Dike 5 
Dike S 
Dike B 
Date 
Dike 5 
Dike S 
Dike B 
E 
c 
E 
c 
E 
C 
E 
C 
E 
C 
E 
0 
1933 
May 19 
24 
2 
1933 
June 27 
1 
22 
7 
6 
28 
11 
9 
2 
12 
26 
4 
6 
July 3 
4 
3 
14 
12 
29 
10 
10 
2 
9 
14 
31 
10 
4 
10 
8 
6 
6 
4 
June 5 
6 
10 
ii 
22 
6 
6 
22 
2 
7 
8 
4 
6 
7 
6 
4 
8 
14 
8 
13 
9 
8 
4 
4 
20 
10 
1 
2 
4 
6 
10 
ii 
15 
6 
12 
14 
10 
4 
22 
17 
10 
4 
13 
12 
3 
18 
3 
16 
11 
13 
19 
6 
17 
11 
8 
20 
10 
19 
9 
21 
32 
21 
8 
12 
20 
14 
22 
2 
21 
15 
4 
8 
20 
24 
2 
7 
6 
22 
17 
15 
26 
2 
1 
2 
23 
12 
i 
20 
31 
1 
24 
15 
17 
Aug. 2 
3 
4 
9 
26 
3 
12 
10 
Table 16. — Percentage of adult oysters bearing embryos ( E ) and conchiferous larvae (C) in dikes 5 and 
T ( Oyster Bay) and dike B ( Mud Bay) during 1934 
Date 
Dike 5 
Dike T 
Dike B 
Date 
Dike 5 
Dike T 
Dike B 
E 
0 
E 
c 
E 
O 
E 
C 
E 
c 
E 
c 
Apr. 19 
27 
7 
June 1 
6 
6 
6 
2 
6 
5 
7 
3 
8 
28 
3 
2 1 
8 
6 
4 
May 1 
2 
3 
7 
9 
8 
14 
1 20 
19 
6 
11 
1 
2 
5 
9 
18 
3 
12 
3 
6 
10 
2 
17 
9 
17 
13 
3 
5 
1 
11 
16 
29 
14 
3 
8 
12 
10 
3 
15 
9 
1 
7 
14 
9 
18 
13 
18 
16 
6 
17 
14 
15 
22 
2 
4 
18 
10 
23 
5 
18 
25 
1 
6 
3 
19 
11 
24 
29 
4 
4 
2 
25 
1 
10 
1 
20 
July 6 
9 
1 
26 
18 
1 
4 
3 
28 
6 
7 
9 
10 
3 
29 
1 
17 
13 
1 
1 
2 
30 
7 
4 
6 
21 
1 
31 
15 
25 
1 
1 No oysters opened until May 2. 2 No oysters opened until Apr. 28. 
Table 17.- — Percentage of adult oysters bearing embryos ( E ) and conchiferous larvae ( C) in dikes 5 and 
T (Oyster Bay) and dike A (Mud Bay) during 1935 
1 No oysters opened until May 16. 
2 Sampling discontinued. 
