divetis) Ue 1e, 
320 
I—continued. 
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.) 









= = 
3 os S$ 
S 38 £8 a8 ss 
1898 ny os Qs Es oa os 
$ 82 SS os os. 8 
= aD Siew 38 SopHw 
as $8 m5 QS sias 
os 2.8 Sy 38 SOEs 
a isa) S Q Q 
Aebs ila oo do 122,484,100 0 0 0 0 
ee 36,086,000 0 0 0 0 
nD Don ie ees 43,208,127 0 0 0 0 
(Reb Wo eco 20,321,700 0 0 0 0 
a Sic setae 5,461,600 0 0 0 0 
eo WSs sionees 18,039,600 0 0 0 0 
Dee UH eS 43 ,400, 000 0 0 0 0 
Wiese, Wil eeianod 9,940,000 0 0 0 0 
se Biss veve.ste 2,009 , 200 (6) 0 0 0) 
OIG 5 Se aac 22,035,600 0 0 0 0 
OE ONES ae 29 ,539 ,000 0 10) 17,800 0 
2 OM ris yeu 6,864,800 0 0 0 0 
LANDES, ssSiete faye ae 14,809,800 0 0 0 0 
Sg WhO: Srenereyers 27 ,662 ,900 0 0 , 0 0 
cau Ova rarer 38,507,900 0 60,000 8,000 35,040 
Se 2 Oey cake 86,614,400 0 10,800,000 1,806,400 598 , 400 
IWER - “Sinigaicied 1,063 ,924,800 0 7,200,000 2,764,800 0 
ad yO) oas ieione 203,922,800 0 1,800,000 16,153,600 4,432,000 
et ly apenas 231,154,200 0 0 43,200 0 
fe Ne DAS Swaine 120,175,000 0 1,800,000 3,600 0 
SS loteeeene 29,293,200 0 0 0 0 
JENS Woo gous 19,855,400 460,800 0 0 14,400 
SE Sr Wate ee 43,112,400] 3,801,600 0 0 
ils Sanaa 218,131,200 432,000 0 3,200 12,000 
558 NED BEER tote 185,098,240 86,400 0 172,800 
atts W7Sieponsees 42 ,053 ,200 72,000 0 0 0 
SRA DES a arate 45,923,600 14,400 0 0 0 
Sie HS ra, 294,724,520 0 0 0 (0) 
Gt w2 Ode io.er 120,850,000 0 0 0 0 
Sieh me eA oromatarerr 107,710,800 0 0 0 0 
Bc eaotetoe 496 ,927 ,200 0 0 0 0 
EF PAG arectroncone 166,452,800 0 0 0 (0) 
Pat) DSN ctn kore 128,830,460 0 0 0 0 
S23 Osa he ar 95,423,200 0 0 0 0 
Dept Oa 76,982,440 0 0 0 0 
daa Ota acces 49,515,000 7,500 0 0 0 
St Oe een ean 63,144,000 0 0 0 0 
re Ds chene far 45,854,000 218,400 0 0 0 
Oyen, Ns one 48 ,193 ,000 251,000 1,800,000 0 0 
coe ue aoe 15,129,540 486,000 0 0 0 
Seu tlSnaeneeAs 17,367,000 | 25,000 0 0 0 
So DO hye ecters 5,416,500 13,500 0 0 | 0 
INOVs elites 25,325,500 2,000 0 0 
a Sieveis ears 14,564,000 0 3,600,000 25,000 0 
oe agi yee Orca 36,011,000 (0) 0 0 0 
SAE DOE 23,494,000 0 0 0 
Se DOV ene 73,719,000 0 0 38,500 0 
Wes 16). sve: 56,400,500 0 0 | 0 0 
ee id an ee eae 148,740,000 0 1,800,000 0 0 
Se BD OST ae 116,344,800 0 0 247,200 6,000 
vise UsMy enn 67,965,800 0 0 69,600 0 
Average...... 95,852,602 112,896 | 555,000 407,602 101,358 




divergens 
Dinobryon 
sertularia 
var. 
oo O0000 COCO coo 
8,000 
1,555/200 
2,104,100 
39,648,000 
1,584,000 
18,000 
56,000 
16,000 
0 
47,040 
e000 SCOCOCOO 82000 CO0O0 C0000 COCO 
866,083 


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