eAS Blas, 
ORGANISMS PER CuBIc METER IN PLANKTON OF ILLINOIS RIVER IN 
338 
I—continued. 
1898 
(An asterisk at head of column indicates that all entries in it are based on 
filter-paper collections.) 





nm ~ 
$ 2 > 
gx pay TS} $ 
8 is} H = uw 
‘ g 5 ¢ = 2) SR | Se 
1898 = 3 8 aS ae gS | £28 R28 
aes BS (2 aS aS S38 83 Ss eS 
BS S15 83 Ss se SA Ses S5.8 
a 6) o S S S o o 
Jane att. <6. 600 0 0 160 0 0 0 0 
Ce 4s, Manne 940 40 0 160 0 0 0 40 
Mi eet ges 4,326 77 0 308 0 0 0 308 
Hebe ene. 192 | 0 0 48 0 0 0 0 
An NS Ni secs | 320 0 0 160 0 0 0 0 
ra sen ee 1,120 0 0. 80 0 0 80 0 
oe ae te 3,285 0 0 0 0 0 0 0 
Maras 10 facta: 644 0 0 0 0 0 0 0 
SPA Lee bs 2,960 40 | 0 120 0 0 0 0 
Ca Coe 12/280 40 0 400 0 0 80 120 
Dip Og nS 18/320 200 0 80 0 0 0 80° 
ee Olan tee 21/660 100 20 60 0 0 20 0 
Noor edt tees. 34,000 200 20 40 0 0 0 0 
ie ipeee te A 27.420 1,120 0 0 0 0 0 40 
ee tOR Saree 33,600 0 200 200 0 0 0 500 
eT MDG ne 54/080 0 1,600| 2,880 0 0 0 4,160 
Mayss.3h ten 202 ,000 400 0) 8,000 400 0 0 1,200 
Tae a 229° 400 0 600) 5,200 0 0 600 2'200 
Se ee se 172,200 800 200 600 0 0 0 3,300 
Lay age 142/600 80 920 320 0 0} 1,080 11640 
SON Eailis hes 110/880 0 200 0 80 0 400 640 
pana Mina 301,200 0 400 0 0 0| 2,600 4,000 
“rg” manatee 181/800 0 200 0 200 0 800 4’ 400 
oie 80/600 0 0 0 0 0 0 400 
Cs eee 35/100 0 0 0 0 0 0 200 
aly ois aloe: 3,840 0 0 0 0 0 0 120 
ie c/a a 1/200 0 0 0 0 0 0 180 
Co eeepc 12/800 0 0 0 40 0 40 240 
oa) IY ig syne 13040 0 0 0 120 0 120 300 
Age Sao a oe 11,600 0 0 0 0 0 0 40 
Soe ON ee 3/040 0 0 0 80 0 0 160 
eG Sena 2/380 0 0 0 0 0 0 180 
EPP er Coin 15/340 0 0 0 120 0 0 660 
CASEY es 23/040 0 0 0 440 0 0 480 
Sep sOtcce 8,360 0 40 0 80 0 0 0 
ae cee Get 207800 0 0 0 120 0 0 240 
GE SID cae 20/320 0 0 0 120 0 60 360 
ae ea, eee 98/200 100 700 0 300 0 200 700 
Oct: 4 Fak 32,560 0 120 0 320 0 200 400 
Cae kee a 32/060 0 200 0 80 0 0 120 
at i tees 23,520 0 280 0 0 0 40 40 
Cay pete 25/000 0 60 0 60 0 120 240 
Novwesil sae 8,480 0 120 0 0 0 0 60 
cay Si ae 15/080 0 0 0 0 0 0 120 
cea eee ee 13/000 200 0 200 0 0 0 0 
ee ea 10/880 480 0 80 0 0 0 160 
CoE OMe Raut 6,100 80 0 4 0 0 0 0 
Dae Ons aac. 9,480 20 0 0 0 0 20 0 
ei see ae! 21/500 0 0 40 0 40 0 0 
Oye, ial 2/040 40 0 160 0 40 0 0 
eae Ore te, th 6/520 0 0 120 0 40 0 0 
|. — 
Average...... 40 ,609 78 113 373 49 2 124 539 











