

Year 



No. of 

 collections 



Av. of 

 monthly 



averages 



Av. of all collections 



Station 



Plankton 



Silt 



Total 



Illinois River 



1894 

 1895 

 1896 

 1897 

 1898 

 1899 



10 

 50 

 76 



34 

 52 

 13 



2-53 

 5.91 

 1.05 

 3.28 

 2.03 

 .42 



2.49 

 3.22 

 1. 16 



3-69 

 2.13 



■ 41 



.28 



•72 



2-55 



1. 91 



2. 11 



■94 



2.77 

 3-94 

 3-71 

 5.60 

 4.24 

 i-35 





Grand av 





2 .71* 



2-I9T 



i-79 



3-98 





Total 



235 





1896 

 1897 

 1898 

 1899 



9 

 '3 

 11 



3 



.007 



■983 

 .029 



.Oil 



.007 



1.257 



.029 



.011 



•349 

 '•173 



.796 

 2.216 



.36 



2-43 



■83 



2.23 







Grand av. . . 





.256 



.465 



•939 



1. 41 





Total 



36 





1894 



1895 

 1896 

 1897 

 ]8 9 8 

 1899 





Quiver Lake 



14 

 13 

 3i 



24 

 26 



7 



.90 



.65 



2. 19 



1 .62 



1 .96 



.66 



1.08 

 .78 



2.59 

 .88 



2.44 

 .67 



1. 17 



.70 

 .20 

 .62 

 .40 

 •43 



2.25 

 1.48 

 2.79 





1.50 

 2.85 

 1 .11 





Grand av 





'•75 



1 .70 



■52 



2.22 





Total 



ii5 













1895 

 1896 

 1897 



12 



30 



6 



3-30 



3-99 

 2.65 



3- 2 5 

 5.01 

 2.23 



2.15 



•5' 



.22 



5.40 



5-5i 

 2.45 





Grand av 





3.16 



4.22 



.88 



5.10 





Total 



48 









Flag Lake 



189S 

 1896 

 1897 

 J 898 



4 



27 



7 



6 



25.66 

 8.31 

 5-34 

 5-31 



20.45 



13-83 



4-59 



2.83 



3-45 



1.45 



.69 



4-3° 



23.90 



15.28 





5.28 

 7-13 





Grand av 





Q.2^ TT Afi 



1.90 



13.36 





Total 



44 















Thompson's Lake 



1894 

 1895 

 1896 

 1897 

 1898 

 1899 



5 



14 

 27 

 18 



25 

 7 



8.89 



13-31 



6.67 



10.41 



5.06 



1. IS 



8.89 

 9.67 

 9.00 

 10-43 

 5-7i 

 1. 21 



2.23 



1.44 



.22 



1.28 



•79 



•32 



11 . 12 

 11 . 11 

 9.22 

 11. 71 

 6.50 

 i-53 





Grand av 





8.26 



7-94 



.86 



8.79 





Total 



96 









Phelps Lake 



1894 

 1896 

 1897 

 1898 

 1899 



1 

 29 



9 

 22 



6 



24.17 



14-74 

 9.15 



37-34 

 3-74 



24.17 



'3-17 

 10.00 



36.31 

 3-74 



trace 



■ 77 



7.76 

 .29 



24.17 

 13-94 

 i°-53 

 44.08 

 4-03 







Grand av 





22.35 



19.65 



2.95 







Total 



67 















*Grand average of all monthly averages, not of annual averages. 

 "(Grand average of all collections, not of annual averages. 



