FILTER-PAPER CATCHES, ILLINOIS RIVER— Continued. 
553 
Accessions 
number 
2) 
& 
1898 
Il, I 
21, I. 
25, 1. 
gh ie 
8, Il. 
ie IRE 
22% Il. 
1 LE 
3 LED: 
ie WLID 
22 Te 
Zo LLL: 
5, LV. 
125) oUMe 
19, IV. 
26058 Ve 
ae ANE 
10, Ve 
17, V. 
24, V. 
31, V 
7, WI. 
4. VI. 
ain Vis 
285) Vil: 
5 Vil 
12, VII 
I9, VII 
26, VII 
2 VILLI: 
9, VIII. 
16, VIII. 
23, VIII. 
30, VIII. 
6; IX. 
Leh Ist 
Zo, “UXe 
275 EX. 
eo 2G 
rae Ne 
18, X. 
ZAR | oat 
Y, (ed; 
8. xe 
sy Dsl: 
22 Ns 
29, xl: 
Ree. ai 
bey, 2st 
15, XII 
20, XII 
27, XII 
strained 
Water 
1000 
oo) Seve eee pee | 
ws i] i n 
SB boa ash caer a 
s ao |/Seo | 22 
& Sy eo eS 
.05 50 | 99.70} 49-85 
.06 60 99-99 | 59.94 | 
-16 160 99-50 | 159-20 
-03 30 | 98.00 | 29.40 
-08 80 99 .0O 79.20 | 
112 120 99-50 | 119.40 | 
-41 410 | 99.99 | 409-96 | 
-O4 40 | 99.90 | 39.96 
-O4 4o | 99.90 | 39-96 
05 50 99-50 | 49-75 
05 50 99-20 | 49-50 
-O4 40 99.80 | 39.92 
-04 40 99.80 | 39-92 
-03 30 99.20 | 29.76 
-O4 40 93-00 | 37-20 
.06 60 45.00 | 27.00 
-07 70 35-00 | 24.50 
.08 16 | 30.00] 4.80 
.08 80 60.00 | 48.00 
12 120 95.00 | I14.00 
.08 80 92.00 | 73.60 
04 40 90.00 | 36.00 
.03 30 94.00 | 28.20 
.07 70 85.00 | 59.50 
.08 80 85.00 | 68.00 
.07 70 96.00 | 67.20 
05 50 96.00 | 48.00 
05 50 92.00 | 46.00 
06 60 30.00 | 18.00 
-04 40 94.00 | 37.60 
08 80 80.00 | 64.00 
.05 50 2.00 | 46.00 
.06 60 94.00 | 56.40 
04 40 93-00 | 37.20 
.06 60 97.00 | 58.20 
.07 7o 98.50 | 68.95 
.06 60 99.00 | 59.40 
.06 60 g2.00 | 55-20 
04 40 95.00 | 38.00 
.07 70 99.50 | 69.65 
.03 30 g9.00 | 29.70 
08 80 99-70 | 79.76 
II 110 99.90 | 109.89 
.08 80 99.80 | 79.84 
.12 120 99.95 | 119.94 
.20 200 99-99 | 199.98 
.O4 40 95.00 | 38.00 
.03 30 93-00 | 27.90 
.O4 40 85.00 | 33.00 
.03 30 65.00 19.50 
O4 40 85.00 | 34.00 
02 20 75.00 | 15.00 
ey 
Total plank- 
ton per m.® 
Wn 
FRAESGRLLAPEHER 
wn 
[o) 
.50 
Catch of 
mo oe 
wumoummreOoo0odooeoeoo0o”0 
Nile Rr OOKMODDDDDODOODOOOKDOGO OOOO 0OON QM 
silk net 
