NATURAL HISTORY OF THE QUINNAT SALMON. 79 
another basket, No. 1, of 30,000 eggs was picked daily. The loss of the baskets picked 
daily was from three to seven times greater than that of baskets not so treated. 
The following table indicates the comparative loss in baskets No. 6 and No. 7, 
and shows that eggs are very sensitive between the sixth and sixteenth days, and 
that they should be disturbed as little as possible during that period. Basket No. 
6 lost but 785 eggs from the fourth to the twenty-second day, while basket No. 7, 
which was picked daily, lost over 8,000. After the twenty-second day the loss in 
this basket, No. 7, was only 613, while it was 1,369 in No. 6, the one not picked 
daily. The loss on the forty-third day was the result of being shipped from Battle 
Creek to Olema, in which case the loss in No. 6 was nearly eight times that of No. 7. 
It is evident, therefore, that daily picking takes out nearly all the weak eggs, but it 
is also strikingly evident that it takes out a very great many that are not weak. 
Table showing loss of eggs in baskets No. 6 and No. 7, taken November 15, 1897. 
Age, days. 
Tem- 
pera- 
ture of 
water. 
Loss. 
Age, days. 
Tem- 
pera- 
ture of 
water. 
Loss. 
No. 6. 
No. 7. 
No. 6. 
No. 7. 
° F. 
° F. 
i _. 
49 
303 
30(5 
35 
47 
16 
2 ... 
49 
54 
43 
665 
84 
3 
52 
56 
in 
18 
1 
52 
60 
47 
5 
5 - 
53 
131 
48... 
2 
6 
51 
203 
49 
64 
3 
7 
50 
«267 
50 
5 
8 
51 
«225 
51 
3 
9 
50 
a 420 
52.. 
4 
in. 
49 
'0,240 
53 
9 
n 
47 
1>1,000 
54 
11 
12.. 
48 
d/97 
2 
13 
48 
1,200 
57 
2 
14 
49 
1,582 
58 
62 
15 
52 
469 
60 
14 
m 
51 
331 
61... 
23 
17 
48 
132 
62... 
20 
18 
46 
47 
63 
25 
lit 
46 
1(H) 
64 .. 
115 
20 
48 
54 
65 
17 
21 
51 
28 
68. 
21 
13 
22 
50 
785 
31 
69 
15 
23 
50 
18 
72. . 
32 
24 
24 
48 
430 
24 
74.. 
11 
15 
25 
50 
31 
75. .. 
5 
14 
51 
28 
77 
5 
9 
27 
51 
24 
78 .. 
1 
28 
49 
12 
79 
3 
29 
49 
41 
80 
2 
30 
47 
28 
83 .. 
31 
46 
23 
84 .. 
2 
32 
45 
23 
33 
46 
16 
2,497 
9,404 
34 
44 
14 
a Many killed while picking (went over basket but once). ('Not so many killed while picking. 
c Died almost as fast as one person could pick them out. 
The table below gives a summary of the loss in four baskets; two, No. 1 and No. 
7, picked daily, and two, No. 5 and No. 6, picked so as to avoid the critical period : 
Picked daily. 
No. 5. 
No. 6. 
No. 1. 
No. 7. 
Loss of eggs 
16,889 
7 
35 
16,931 
56 
0.3 
9, 404 
14 
4 
9,422 
32 
0.6 
3,292 
21 
38 
3,351 
11 
0.7 
2,497 
« 112 
56 
2,665 
9 
0.4 
Loss of alevins . 
Deformed fry 
Total loss 
Percentage of loss . 
Percentage unfertilized . 
" The large loss of alevins of No. 6 was caused by accidental smothering. 
