LACS 
340 : 
I—concluded. 
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.) 
n i i) 
3 “ 5 
2 $ q ay 
83 & ¢ & ra i= 
ee SI a a a £ 
ee 2 | 89 = 3 2 ct “ 
as Sa Ee) 32 doe it aa 
oO Si Lo) os ons oN yayev 
a Q Go a a a al 
anes Were 10) 0) 20 1,220; 544,201,080 1,042,720 545,243,800 
SL wencnad Ps - 0) 80 40 7,720 | 202,136,180 288 ,340 202,424,520 
Fe Cmiack a 0) (0) 154 7,738 | 180,295 ,247 195,484 180,490,731 
JENS} 0), My Relepena pace 0 (0) 24 648 | 619,030,830 1,381,960 620,412,790 
thor e.sad6 10) 0) 80 2,160} 297,341,760 651,200 279,992 ,960 
c-Si arae 10) (0) 0) 6,000} 653,122,000 1,091,920 654,213,920 
NS GEE ido we (0) (0) (0) ghey || alike, Salete tht) 715,697 116,230,509 
Wiehe. Al eet as a (6) 800 160 1,124 21,790,800 1,809 ,688 23,600,488 
me Sina anat 10) 40 40 3,360 96,590,840 542 ,680 97,133,520 
See rence 10) 40 40 3,280} 118,382,400 453,100 118,835,500 
Be yD Tiong see is 0 1,640 0 1,600} 127,930,360 484,760 128,451,120 
MLO sey yee: 10) 80 0 2,020 53,463,040 444,900 53,907 ,940 
Api: oIsees e/a 0 900 | 100 1,860 42,470,860 363,980 42 ,834,834 
pone LUPAES PR ares (6) 220 | 20 980 90,934,320 1,432,400 102,366,720 
Pee ONe:  pnkaiews 0} 400 | 0) 3,100} 927,956,220 2,134,800 930,091,020 
Tan 7Asiehar tora (0) 320 | 0) 20,160 |3,872 ,537,280 16,092 ,840 | 3,848 ,630,120 
WIESE TG io'o oa 0) 0) 6) 10,800 |3,200,166,960| 898,919,800 | 4,099 086,760 
NOS Stone 0) 0) 200 13,600 44,467 ,165,760 42 ,826,200 | 4,509 ,991 ,960 
SL UU oter tier 10) 100 0) 213,900 |2,148 ,960,400 31,091,900 | 2,180,052 ,300 
Bt tnt a 0) 1,200 | 0 5,360 | 190,671,160 4,969,580 195,640,740 
seme Oils fone tens 120 100 | (0) 4,720) 252,704,250 2,772,200 255,476,450 
ame* Wat mace 200 0 | 10) 24,000 | 259,129,000 9,695 ,000 268,824,000 
se AE oeeeccoy | 10) (6) 0) 4,400 |1,149 ,333,480 10,959,400 | 1,160,292 ,880 
Og RCH See 300 0} 0 3,300} 641,056,900) 15,159,600 656,216,500 
mt hetero) rae 200 0| 300 10,900 |} 612,686,240 7,796,700 620,482,940 
Agi sein cole ¢ 40 0 | 120 5,800} 257,668,840) 495,337,320 753,000,160 
em Darts: Bee 120 60 120 5,320} 223,936,060 4,135,160 228,071,220 
pee gli etre vcictcie 40 80 10) 2,680 |1,578,635,720 1,717,240 | 1,580,352 ,960 
Fit ACRE ctr 10) 60 0 1,440 | 281,604,120 907 , 240 282,511,360 
Aag 2 eee 0) 6) 0) 3,440 | 369,169,240 5,833,440 375,002 ,680 
- S etare Bit 0 0) (0) 840 |3,084,000,880 69,874,760 | 3,153,875 ,640 
Sade Oltigan. ss (0) 0 | 10) 6,580 | 583,940,376 1,240,920 585,181,296 
oe) Aebetocsetos 60 (0) 10) 8,420; 544,041,260 1,519,140 545,560,400 
mr Ok fepensy one 160 80 0 5,320] 797,312,600 597,880 797,910,480 
septs 6): ces 10) (0) 0 4,320 | 488,146,040 60,463,480 548 ,609 ,520 
Sens ES PH cay Stee 60 60 0 2,420 | 676,773,060 L220: 678,485,780 
DO neha 2 180 0 0 5,920} 330,837,120) 32,466,660 363,303,780 
0, 97 et ee | 0 0 0 12'100| 511/099/300| —3'201;200| 514/300,500 
Odie eae: 40 40 0 2,740| 264,225,400]  2,035,720| 266,261,120 
oy SL Soca ce 0 0 0 1,240] 126,398,510 1,495,880 127,894,390 
PRLS acess 0 6) 400 1,140 | 182,891,160 1,967,020 184,858,180 
Sar LO eyes 0) (6) 0 3,860} 218,768,810 2,453,060 221,221,870 
Novo uate 0 120 60 4,360 | 209,418,675 1,189,380| 210,608,055 
4 Sisteyen, ais 0} 0 0 15,300 | 277,953,180 1,281,220 279,234,400 
eels aie tas 0 0 100 7'500| 407'573,600 732'300) 408'305/900 
pe Ver nee 400 0 0 25,680 | 466,411,780 1,109 ,040 467,520,820 
SSE 2 aera (0) 80 240 1,900 | 364,032,900 799,980 364,832,880 
Decy Hoe. +: 10) 0) 180 680 | 529,250,270 916,780 530,167,050 
Py Bl Sickenacaete 0) 500 60 1,560 |1,715,442,415 1,757,440 | 1,717,199,855 
ans GL Olaraerrcr se (0) 0 80 320} 848,243,820 682,440 848,926,260 
et icra ee 0 0 80 340} 387,414,000 548 , 700 387,926,700 
Average...... Sifi 135 32 9,393 723,283,871 34,226,468 756,548,801 
