254 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
wliich mention is elsewhere made, is well illustrated by these figures. On comparing 
1884, 1886, 1888, 1890, and 1892 with 1883, 1885, 1887, 1891, and 1893, it appears the 
catch during the former series was 341,253 fish, and during the latter 246,881 fish. 
Summary of the yearly catch of salmon in two wheels located, respectively, on the Oregon and Washington 
sides of the Cohimhia Biver, at the Cascades. 
Years. 
Chinooks. 
Bluebacks. 
Steelheads,*! Total. 
1 
1883 
number. 
20, 908 
27, 902 
12, 049 
13, 641 
21.984 
11,996 
Rumber. 
75, 121 
83, 219 
59, 208 
120, 503 
80, 166 
40, 978 
Xumher. 
Number. 
96, 029 
111,121 
71, 257 
134, 144 
107, 506 
59, 079 
1884 
1885 
1886 
1887 
5, 356 
6, 105 
1888 
1889 
1800 
23, 161 
4, 089 
12, 572 
14, 670 
554 
74, 419 
10, 448 
22, 134 
21, 9o8 
1,049 
8, 094 
1,557 
14, 074 
16, 724 
74 
105, 674 
16, 094 
48, 780 
53, 332 
1,677 
1801 
1892 
1893 
1894 
Total 
163, 526 
589, 183 
51, 984 
804, 693 
* Not utilised prior to 1887. The fish caught ^vere given away. 
The following tables illustrate the monthly variations in the abundance of chi- 
nooks and bluebacks during each of the years mentioned. The largest catch of both 
fish is obtained in June; in April and August the yield is insignificant. 
Statement of the number of chinooli salmon tahen monthly in two wheels located, resyiectively , on the Oregon 
and Washington sides of the Columbia liwer, at the Cascades, from 1883 to 1894, inclusive. 
Years. 
April. 
May. 
June. 
July. 
A-ugust. 
Total. 
1883 
5,057 
3,787 
3, 123 
410 
3,228 
2, 066 
7,393 
15, 393 
7, 102 
11,427 
7, 395 
6, 593 
8, 4.58 
8,722 
1,824 
1,804 
11,271 
2,725 
20, 908 
27, 902 
12, 049 
13, 641 
21,984 
11, 996 
1884 
1885 
1886 
1887 
90 
1888 
12 
1889 
1800 
13,331 
1,072 
281 
1.487 
520 
8, 979 
2, 878 
7,908 
8,710 
851 
139 
4,359 
3, 912 
23,161 
4, 089 
12, 572 
14, 670 
554 
1891 
1892 
24 
553 
1893 
1894 
8 
34 
54 
34, 902 
83, 778 
44, 065 
667 
163, 520 
Statement of the numher of blueback salmon taken monthly in two wheels located, respectively, on the Oregon 
and Washington sides of the Columbia River, at the Cascades, from 1883 to 1894, inclusive. 
Years. 
April. 
May. 
J une. 
July. 
August. 
Total. 
1883 
5, 108 
4,350 
5, 296 
2,161 
5, 283 
4, 281 
59, 621 
65, 392 
42, 717 
111,400 
38, 544 
31, 014 
10, 392 
13,477 
11, 195 
6, 942 
36, 33f 
5, 490 
75, 121 
83,219 
59, 208 
120, 503 
80, 166 
40, 978 
1884 
1885 
1886 
1887 
1888 
187 
1889 
1800 
88 
12, 176 
1,922 
6, 203 
1,783 
1, 039 
54, 670 
7,583 
11, 334 
12,515 
7. 485 
943 
4, 591 
7,544 
74, 419 
10, 448 
22, 134 
21, 938 
1, 049 
1891 
1892 
6 
84 
1893 
12 
10 
1894 
Total 
297 
49, 602 
434, 790 
104, 404 
90 
589, 183 
Tlie maximum height of water shown in the tables was 30 feet 8 inches in 1894. 
Shortly after that point was reached the wdieels were washed away, and the water 
