DAB LE, 
S19 
I— 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.) 



1898 





8 = 
3 Bs = = s 3 
a % Ss Ss Ss 3.8 § 
Se 1 Ss SS) oS s oS iS) 
~ tt AN Se Ls x xs =335 
28 £8 Bs aS Rs SS ae 
8 e} ae] ~s SS ss io) 
a = 8 Si 8 H = 
40,000 0 0. 0 0 0| 123,518,320 
0 80.| 0) 0 80 0} 36,316,000 
0 ) 0 0 0 0 43.464, 482 
0 100 0 0 100 0} 21,691,300 
60,000 80 0) 0 80 0 6/096; 160 
3,600,000 400 | 0 0 400 0 19,093,280 
0 0 0 0 0 0| 44:060,478 
900,000 0 0| 0 0 0| 11,727,360 
3,600,000 40 0 0 40 0 2'516,240 
2'480;000 1,000 400 0 600 200, 221368;600 
13/620;000 | 600 200 0 400 | 0| 29,817,200 
4'200/000 1,000 0) 400 600 0 7,169,620 
2,340,000 | 440 | 40. 100 200 0 15,052,540 
4/500/000 | 300 200 100 0 0| 29,011,320 
23/580,000 | 1,200 0 800 400 0} 39:856;000 
82/800,000 3,200 0 0} 3,200 0| 94,337,920 
240,000,000 3,200 3,200 0 0 0 | 1,081,381,200 
813,600,000, 1,800,000 0 0 0 0| '222;233,400 
367,200,000 3,000 800 1,600 800 0} 252,834,800 
1/800/000 | 7°00 1,000 200} 6,000 O41 4212175.,320 
37,800,000 | 62/200 400 0} 1,800 Qa| *31,584,920 
17,100,000 | 1,200 800 0 400 0} 27,679,000 
21,600,000 | 2000 200 0| 1,800 0| 49,614,800 
79 200,000 1/100 800 | 0 300 0| 230;167,200 
5/400;000 800 0 0 0 0) 191,626,440 
| 
1,800,000 800 0 0 0 400| 78,477,400 
5' 400,000 | 0 0 0 0 0} 49:852,520 
39 /600,000 1,200 400 800 0 0| 295,478,560 
900/000 60 60 0 0 0| 121,362,600 
0 40 | 40 0 0 0| 112,224,400 
0} 80 80 0 ) 0| 566,013,480 
5,400,000 120 | 60 0 60 0| 166,746,460 
0 0 0 0 0 0} 129:617,660 
6,300,000 240,200 120 0 80 0} 95:553/600 
3,600,000 2,400 2,400 0 0 0} 137,009,680 
7/200,000 1/060 500 500 60 0| 505995,120 
16/ 200,000 120/620 500 2,500 120 0} 65;106,000 
1,800,000 6.800 200 6,400 200 0| 46,830,100 
42,300,000 241,000 0 1,000 500 500| 49,825,580 
1/800;000 1/160 80. 1/000 80 0 15/982/080 
13/500,000 160 80 0 80 0 19/122/540 
27.000;000 500 500 0 0 0 6,776,060 
5,400,000 9,500 2,500 500} 6,500 500| 26,343,120 
16,200;000 2.000 1,000 0} 1,000 0 15,566,060 
37,800,000 1,100 1/000 0} 1,000 0| 36,542,100 
23/ 400,000 200 0 0) 2,000 0} 24,435,040 
30/600,000 a) 500 0 20 0| 74,444,400 
8,100,000 520 0 0 0 0| 57,242,080 
27/000;000 0 0 0 0 0| 149'284/900 
5/ 400,000 0 0 0 0 0| 116,833,160 
10/800;000 200 200 0 0 0| 68,456,620 
39,639,231 48,456 348 305 556 31| 102,220,941 







