

50/8) 
‘AUB, i=—cliob can iera & 
ORGANISMS PER CuBic METER IN PLANKTON OF ILLINOIS RIVER IN 1898. 
(An asterisk at head of column indicates that all entries in it are based on 
filter-paper collections.) 






g a 2 2 S 
1898 HS 88 |88 §] ess 33 vss | §83 | 88 
SRS SS Ree SiSh ESS as $8 Soe 
S55 Reeeaet sce | Bee | See | ss.) see 
oQS 3 > 3 > QS os a 
= Ge is lS a = eal iS 
Jess, Meso ecie 100 0 0 0 0 0 0 100 
pie aeellete, ciretees 100 0 0 40 40 0 1) 0 
SUES eaea ae Leto 0) 0 0 0 0 0 1,548 
lntelel © Sic einer. 0 0 0 0 0 0 0 100 
a Suomen acee 0 0 0 0 10) 0 0 0 
momen Ce ue ei. 800 0 0 0 0 0 0 2,400 
Bm Da tars. svete ‘ 632 0 0 0 0 0 0 3,791 
WEIS HLS Gigenao 480 0 0 80 80 0 0 480 
ie Sit ore sie 160 0 0 0 0 0 0 840 
amet LO etraiste tc: 1,000 0 0 160 160 0 0 400 
ee 2,920 0 0 2,000 2,000 400 0 440 
oe BLO evens) ots 420 0 0 1,800 1,800 1,200 0 20 
AMDT) pObener-be «ce 20 0) 0 700 700 400 0 120 
SO Sih Nene ery eae 240 0 0 140 140 60 0 200 
gt ALIGN os ese 5,200 0 0 400 400 0 0 0 
Saree Olas. it A 324,280 0 0) 6,400 6,400 0 0 0 
Maye = Sith. ac 661,200 0 0 0 0 0) 0 41,600 
set gills c.:.: 118,400 0 0 0 0 0 9,600 
pep meal dbase, Bre cits 101,700 0 0 0 0 0 0 800 
Pee ee Ee miosis 1,040 0 0 0 0 0 200 80 
pry Gide aps. 2420 0 0 0 (6) 0 0 0 400 
JficiaX “Hiomem es 0 0 0 0 0 0 0, 0 
ae heen een 400 0 0 0 0 0 0 400 
oe AVA hee ee 100 800 0 0 800 0 0 0 
TE) YON erected 100 100 0 0 100 0 0 100 
Aficio 40 0 0 0 0 0 0 40 
hina WAS ee 400 (0) 0 0) 0 0 0 1,200 
Sat AOS Se id 400 40 200 0 240 0 0 400 
TD Ohsncterte. 800 0 400 0 400 0 0 1,200 
ATER ED et 1,200 0 0 0 0 0 0 0 
Ss Oregons 8,400 0 800 0 800 6) 0 0 
pap BLIGH Re Piso: 5,600 (0) 800 0 800 0 0. 800 
os Te 14,400 0 2,400 0 2,400 800 0 4,800 
Sans Olafavtays rae 12,000 0 0 0 0 0 (0) 
Sept. (6 a. 0%. 22,400 0 5,600 0 5,600 0 0 800 
a LE en 3,000 0 500 0 500 0 (0) 0 
BR? Oscnveccercc%: 5,500 (0) 0 0 0 0 0 500 
OH eee ae 32,000 0 0 0 0 0 0 1,600 
Oct Ly oeeeted 500 0 0 0 0 0 0 500 
es ae Sees (0) 0 (0) 0 0 0 0 500 
pe EL Sierene cbc 500 0 (6) 0 0 0 (0) 540 
RR OLDS racer: ts 4,500 0 0 0 0 0 0 500 
INowsary Wrens ciate (0) 0 0 0 (0) 0 0 2,000 
ee Bis eran a 120 0 0 (0) 0 0 0 2,000 
ie LORS Sessa 1,200 0 0 0 0 0 0 1,000 
We 1S 12) are One 2,400 0. 0 0 0 0 0 2 ,000 
pie Deyo ate | 1,500 0 0 0 0 0 0 500 
IDEs Si Geioniaae 860 0 0 100 100 0 0 0 
Sot ised ste aie 10,600 0 0 600 600 0 0 0 
page DO Re cane 1,800 0 0 | 40 40 0 0 0 
aH he eae 100 0 0) 240 | 240 | 80 | 0 1,621 
| | | 
Average...... 25,974 18 206 244 468 56 4 1,685 







