TABLE 
330 
Il— continued. 
ORGANISMS PER CuBIc METER IN PLANKTON OF ILLINOIS RIVER IN 1898. 
(An asterisk at head of column indicates that all entries init are based on 
filter-paper collections.) 
. an ~n na 
gs Ss | 2a Rn < Sie nw S a & S 
8 Ss SS S23 SIS oe = lb Saeecs 
1898 SES 2.8 8s SSS SS oss Oe 
a ~~ Si asst = Sees 
ae Beata s B28 ge? gee | Sess 
aS aX, 28 oP oNs oNs 25 7S 
x x | a) ina) a a a) 
ance ld. psc 0 | 0 | 6) 0 (0) 0 0 
Ca Alea eae 100) 6) 0 0 0 0 0 
SBN Moe 0 | (6) 387 (0) 387 (0) 10) 
HeDs reS kano O° 0 0 10) 0 0 (0) 
ee oheeceer ata (0) (0) 0 (0) (0) 10) 10) 
Set SER ON 0 0 0 0 | 0 0 0 
be O22 reece oy 0) 0 0) 0) (0) 10) 
Mag.) Ls.sh ae 80 (0) 0 0 0 0) 0 
i Sirsa (0) co 0 (0) 0) 0 0 
Seat Ore. ace he (0) 0 (0) 0 0) 0) 0) 
EAD DNs Wepinet: 0) (6) 0 0 (0) (0) 40 
SF DOW ahaa 0 0 0 0 | 0 0 0 
Aprae inks acc 20 10) 100 0) 100 0 0 
Be Pe li2is, crmencrs 0 | 0 0) 0 0) 10) 10) 
pote Ore anaes: (0) 10) 0) 0 (0) 0) 0) 
ee On cess 0 oO 0 0 Oo 0 0 
Wary ts erent | 16,000 0) 0 0 10) (0) 0 
Fo SIO) ae 20,800 | 3,200) 1,600 0 | 1,600 | 0) 0 
pies We otrar ets 11,200 | 14,400 (0) 800 | 800 800 (0) 
es BRD Alay: trea 400 | 2,120 0 | 200 200 10) 0) 
sata lisvieweys bs,8 200 2,000 1,400 0) 1,400 0 0 
jane sae eee 200 0) 4,800 0) 4,800 0) 0 
ae: See 0° (0) 4,000 0 | 4,000 | 1,600 0 
AES Te saa 1,100 1,100 70,400 on 70,400 24/3800 0) 
SSD aR B'S 100 | 0} 544,000 0 544,000} 128,800 | 0 
ialvgeesitee 160 | oO 29,200 400 29 ,600 1,600 0 
pUoio ey a 0 on 51,200 | 0) 51,200 13,200 400 
reer Os chats 280 | 0) 300,800 34,800 | 335,600 72,800 0 
Le OG eae 17,900 0) 6,400 10,400 16,800 1,200 0) 
rages 2 era 23,200 0) 10,400 93,600 103,200 12,000 0 
Oya ayaa 80 (0) 229,200 64,800 292 ,600 105 ,600 400 
so lG.s uke 800 | 0 272,800 | 80,800 353,600 116,000. 10) 
SPAS pa toi 4,000 om 77,600 138,400 216,000 42 ,400 (0) 
BOs ma 5% 2,400 | 0 | 28,800 86,400 115,200 28,000 2,400 
| | 
WED ismOmeen ac 0) 0 80,000 83,200 163,200 35,200 400 
Bo) TALIS: sone oe 10) 60 27,000 10,000 36,500 18,000 2,000 ~ 
te EZ O ren 1,140 60 87,500 27,500 115,000 43 ,000 (0) 
SF oh AT vans oe & | 6,400 | (0) 409 ,600 84,800 494,400 41,600 1,600 
Octe) <4 sae 500 0 | 19,000 9,000 28 ,000 | 2,000 0 
oe Te eee 1,000 0 |} 8,000 1,000 9,000 2,000 10) 
MBB faraece 0 0 | 8,000 500 | 8,500 | 2,500 (0) 
Pie EDO K ee eres 60 0 | 11,500 0} 11,500 | 5,500 0 
Now. yalissrinac (0) 0 1,000 | 0 1,000 | (0) 0 
eC iN 0) om 0 0) 0) ) 0) 
oS vol Siete: 0) 0) 100 0 100 | (0) (0) 
oie tea ee 0) 0) 0) 0) 0 0 0 
ee ONS hare te 0. 0. 0] 0 0 0 0 
Des Gites sess | 0 0 20 (0) 20 | 0 0 
COGGhy met | 0 oy 0 | 0 0 0 0 
nr cera 0) 0) 400 | 0 | 400 0 0 
ens 6 Se 0| 0 0 | oH 0. 0 0 
Average...... 2,079 | 441 | 43,946 | 13,973 | 57,919 | 13,242 | 139 
| | | 
