(An asterisk at head of co 
AUB tas, 
ORGANISMS PER CuBIC METER IN PLANKTON OF ILLINOIS RIVER IN 1908. 
3359 
filter-paper collections.) 
I—continued. 
lumn indicates that all entries in it are based on 




s Ro 38 = 
UO: = 3 g x3} 5 
le ag cies tees tae eis 
o- = = . 
roe) a8 8 “8 a go gs 3 
Sus q 38 Bois aS 5 eo) 
§ 8 S Qo se Be a G 
no ee 120 240 40 0 0 0 0 
Cody ee eae 200 500 0 0 0| 4,700 0 
5 ene 770 2,709 0 0 0 7174 hte 
Bebo, Soca: 72 72 0 0 0 24 100 
Bion. 80 80 0 0 0 80 0 
Sere HiS| Pees 160 800 0 0 0 400 0 
i ea 126 3,159 0 0 0 0 126 
Mar) 4s%..<:. 4 640 0 0 0 0 4 
Cee 800 2,000 0 0 0 400 0 
RAISE Sos. 220 11/200 40 40 0 600 0 
eo aaa 1,120 16/800 40 0 0 40 40 
Cy ee ae 760 | 20/700 0 0 0 40 20 
Ire ee 1,420 32,300 20 0 0 0 40 
CO a he 1/100 25/100) 60 0 0 40 40 
1) ae 57500 27200 0 0 0 100 100 
he Wy ae 24'320 20/800 0 0 0 320 0 
May ay oct. 19,600 182,400 | 0 0 0 | 0 0 
Gee AOR ck xc 53,200 | 169600 | 0 0 0 0 200 
Veh eae 27,900 166,400 0 0 900} 4,800 200 
Cala ea 12/160 126,400 0 0 840 40 80 
PERS, 5680 103,800 0 0 160 40 80 
Thoin ey eee 23,800 270,400 0 0 0 0 200 
apes 11/400 164.800 0 0 0 200 0 
Cea) | aa 14/600 65,600 0 0 0 0 0 
SoBe: 4/500 30,400 0 0 0 300 100 
icine eee 1,320 2,400 0 0 0 0 40 
Oe "1 te 780 180 0 60 0 0 180 
ey dO coca 1,680 10,800 0 60 0 0 80 
Us 0 ae 840 11/600 0 0 0 0 0 
INeraee BOP ce ke 360 11,200 0 0 80 0 40 
SEAL Si 400 | 2/400 0 0 0 0 0 
Eva cieee bs cA. 600 1/600 0 0 0 60 60 
8 a eae 3,360 11/200 | 0 0 60 60 180 
Baas aig ca: 5,520 13/600 0 0 0 0 120 
Sepia 6h-2 Ac 240 8,000 0 0 0 40 160 
i kaa 4,320 16/000 60. 0 0 120 180 
DON as. to: 0 19/000 0 60 0 120 60 
Deine. 0 96,000 0 200 0 300 400 
Get Ais 2,600 29 ,000 0 0 0 0 80 
SORIA Ri, 3/920 277500 0 80 0 40 40 
2S tae 5/580 17,500 40 40 0 40 40 
2 naa 2/400 22/000) 120 0 0 120 60 
Mower dick ae. 300 8,000 0 0 0 0 180 
(Eph aes 960 14/000 0 0 0 120 120 
ie Kean 400 12/000} 100 0 0 100 100 
ROT ye: 160 10/000 0 0 0| 2,000 320 
oD ON ees” | 4 6/000 12 0 0 0 120 
Des nee 440 9,000 | 0 0 0 500 0 
OE Ea eae 1,060 30,300 60 0 0 0 0 
iE Ohise. el: 1/800 0 0 20 0 0 0 
ED TAA nd 920 5,400 0 0 0 20 0 
Average...... 4,780 36,707 11 10 39 318 76 








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