
AB ie 
ORGANISMS PER CuBIC METER IN PLANKTO 
(An asterisk at head ofc 
329 
I—continued. 
filter-paper collections.) 
olumn indicates that all entries in it are based on 
nN OF ILLINOIS RIVER IN 1898. 








EIS 8 
os 8 
za 2 aS a's 28 Ax Ue S n S 
SEs £:S £3 eS fos 'S = Ze S 
1898 sias 38s sos Ss ees 38 bOSiS 
Sas ae ae ss = es 3 
sSe8 SSH SS 5 ass a S'S s& aE 
ESPs Sie SoS 6x8 exe == StS 
|< x x a = < & 
| 
ane lene. 0 0 0 0 0 100 100 
aia ee ck clas 300 0 0 300 100 (0) 0 
meee 2 Sie eeeks ens 387 | 0 1,661 2,048 0 0 0 
| 
Ie bimeorrare ue 500 0 100 600 3.00) 0 0 
ae Tone eee 0 0 80 80 0 0 0 
Cs SUG Si hehe tee 80 0 0 80 0 0| 0 
nD o'er 0) 0 0 0 0 0 0 
Mar AiPrecciereue 2 400 0 80 480 0 0 0 
3 hes OT | 800 0 1,200 2,000 1,600 0 0 
COT ils eaeace ene 2,200 0 600 2,800 1,400 0 0 
es DD te oe. foe 3,200 0) 800 4,000 2,800 0 0 
CO) OR orca 2,600 0 600 3,200 200 0 0 
/\psrs, eae aac 0 1,700 400 2,100 600 0 0 
aime ANeneacaen ee 1,800 0 400 2,200 800 0 0 
CoN) Salo ieee iced 12,400 0 2,800 15,200 8,800 0 400 
Bie Bed Gilets teks << 12,800 121,000 4,000 137 ,800 57,800 10) 0 
Win? Sapasae 222 ,400 745,600 54,400 1,022,400 552,200 0 0 
sO eee ear 134,400 790,400 220,800 1,145,600 643 ,200 0 0 
YS ly een eres 91,200 295 ,600 48 ,000 434,800 160,000 0 0 
eee? Aue ccs 1,000 18,400 1,800 21,200 7,200 0 0 
See SO Maer etc: 1,400 9 ,200 600 11,200 3,400 0 0 
june: elino hoo 0 32 ,000 0 32,000 3,200 0} 0 
Ope WAN. A nevensss 0) 28,000 1,600 29 ,600 7,800 0 2,400 
am is fone eats: 0 150,400 222,400 372,800 148 ,800 9,600 8,800 
eR ED Ola catty vs 0 48 ,800 117 ,600 166,400 20,800 7,200 4,000 
Voile So oeeoe 0 2,800 7,200 10,000 1,600 800 400 
tS") ae reece 0 2,000 8,000 10,000 4,000 1,200 0 
COMO ears 0 2000 15,200 17,200 5/600 4/000 0 
Oe DO ie renep tes 0 0 1,200 1,200 0 0 0 
[NBS Pe Gio 0 0 0 0 0 4,800 2,400 
a Oe ciobs 0 0 0 0 0 2,000 4,000 
See LO vastus 0 0 0 0 0 16,000 8,800 
ee BD Sirs. ee sv 0 0 0 0 0 9,600 3,200 
So BOR vse 0 0 0 0 10) 800 800 
Sits, Waieewok | 0) 0 | 0 0 0) 0 0 
Seal Siac carbs 0 500 0 500 0 1,000 0 
SOON cry: 0 3,500 8,500 12,000 6,000 4,000 1,000 
CO re eee 0 19,200 35,200 54,400 16,000 43 ,200 54,400 
Octe o4 ces 0 4,000 2,000 4,000 500 2,000 500 
Seem Ay ohn ter ous 0 7,000 2,000 9,000 4,500 500 0 
eM Si utes ton cece 0 17,500 7,000 24,500 10,500 3,500 2,500 
OSes ere 500 9,000 19 ,000 28,500 7,000 13,500 5,000 
INGivaneilets score 500 0 1,000 1,500 0 500 1,000 
oe Saas, 2 0 0 0 0 0 0 0 
See AsO S crbnseacs 0 0 0 0 0 (0) 0 
Fe DID se AR Ses « 0 0 0 0 0 0 0 
ET Ae lee Oy aed 500 1,000 8,500 10,000 500 0 0 
CCT Orc: © wuss 0 1,000 1,020 2,200 20 0 0 
ame e ss: 500 1,700 5,100 7,300 1,800 0 0 
10) areas 0 3,600 1,600 5,200 2,600 0 0 
LN AY (Goes 0 200 0 200 0 0 0 
| 
| | 
ASveTagels «=. 9,421 | 44,540 15,432 69,165 BIE 358: 2,390 1,917 







