
S15) 
TABLE 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.) 


1898 





* 
* 2 
S4 = = S x a 
Ss es S8 23 ‘S* es =§ 
B38 Ss RS 5% 8 SS && 
SEN Qs Ss ws 2.8 aS aS 
= 5 £3 os Ss8 S38 Sf Bo 
es ss ss SS 3 iso QS 
x ae 1S Gs © iY aX 
0 0 0 0 0 0 0 
0 om 0 3,000,000 0 100 0 
0 0 | 0 0 0 387 
0 0 0 0 0 0 300 
0 0 0 | 0 0 0 0 
0 0. 0 0 0 0 400 
0 0 0 0 0 0 0 
0 0 0 0 0 0 400 
0 0 0 0 0 0 0 
0 0 0 0 0 600 1,800 
0 0 0 0 0 0 800 
0 0 0 0 0 600 200 
o| 100| 0 0 0 0 200 
0) 100 0 0 0 0 0 
0 0) 0 0 0 400 400 
0 0 0 0/1,800,000! 3,200 1,600 
0) 3,200 0 0!7,200,000! 3,200 0 
0| 0 0| 57,600,000 |7;200;000| 6,400 4,800 
1,800,000 0 0 0 0| 4,800 57600 
0 0 0 0 0 600 1,600 
0 0 0 oe , 400 ,000 0} 1,000 600 
0 0 0 pate 0} 3,200 12,800 
0 0 1,800,000 0 0| 32,000 39,400 
0 0 O| 4g 0 0 800 56,000 
0 0 3,600,000] © ° 0 0| 6,400 55/200 
0 0 0 FO 0| 3,600 44,800 
1,800,000 0 0 0 0| 1,200 49/200 
10800,000 0 0| 61,200,000 0| 4/000] 136,000 
5’ 400,000 0 9,000,000 1'800,000/1,800,000| 4,000} 247,600 
3,600,000 0 0 9,000,000 0| 4,800! 295,200 
5? 400,000 0} 10,800,000) 158/400;000 0| 2/800! 145,600 
5’ 400,000 0 3,600,000} 18,000;000 0} 1,600 66,400 
10/800/000 0 900,000} 14/4007000 0| 5.600] 194,400 
21/600;000 0 1,800,000} 21/600/000/7,200,000) 8,000} 326,400 
10,800,000 0 0 0 0| 12,000) 177,600 
7'200;000 0 1,800,000 7,200,000 0 500 42,000 
7°200;000 0 0 0 0| 8,500 76,000 
ny) 0 0 1,800,000/1,800,000| 65,600) 259,200 
1,800,000 0 0 0 0! 5,500 18,500 
1'800;000| 500 0 3,600,000 0! 8/000 11/500 
900;000 0 0 17800/000 0} 33500 9/000 
5,400,000 0 0 3/600,000 0} 18,500 14/500 
1,800,000 0 0 0 0} 5,000 3,000 
0 0 0 0 0} 1,000 3/000 
0 0 0 3,600,000 0} 3/000 3,000 
0 0 0 0 0| 4/000 2/000 
0 0) 0 0 0 500 0 
0 0 0 0 0 0 0 
0 0 0 0 0 0 0 
0 0 0 0 0 0 0 
0 0 0 0 0 0 0 
199,038 75 640,384 7,153,846| 519,231| 4,510 44,372 








