74 



PLANKTON OF WINNEBAGO AND GREEN LAKES. 



Table II. — Record of total volumes of plankton per square meter in 

 Lake Winnebago. 



Statistics prepared as for Green lake. 



Date. 



Vol. in 



Date. 



Vol. in 



Date. 



Vol. in 







ccm. 







ccm. 







ccm. 



1899 





1899 





1900 





July 



5.... 



71.4 



Aug. 



11.... 



124.95 



Aug. 



22.... 



316.55 



July 



6.... 



71.4 



Aug. 



12 ... . 



90.20 



Sept. 



8.... 



523.6 



July 



7.... 



119. 



Aug. 



14.... 



147.32 



Sept. 



22.... 



152.12 



July 



8.... 



111.15 



Aug. 



15.... 



133.76 



Oct. 



6.... 



99.01 



July 



10.... 



108.29 



Aug. 



16.... 



116.38 



Oct. 



20.... 



66.64 



July 



11.... 



67.69 



Aug. 



17 ... . 



111.03 



Nov. 



6.... 



40.46 



July 



12.... 



136.85 



Aug. 



19.... 



120.19 



Nov. 



21.... 



18.8 



July 



13.... 



86.28 



Aug. 



21.... 



128.52 



Dec. 



5.... 



6.43 



July 



14.... 



111.79 



Aug. 



22 ... . 



158.51 



1901 





July 



15.... 



116.86 



Aug. 



26.... 



144.22 



Jan. 



5.... 



8.92 



July 



17 ... . 



124.24 



Aug. 



28.... 



83.30 



Jan. 



19.... 



7.26 



July 



18.... 



136.61 



Aug. 



30.... 



176.12 



Feb. 



2.... 



11.30 



July 



19.... 



137.92 



Aug. 



31.... 



95.2 



Feb. 



16.... 



9.52 



July 



20.... 



183.26 



Sept. 



16 



368.9 



Mar. 



2.... 



17.13 



July 



21.... 



268 70 



Oct. 



7.... 



92.82 



Mar. 



16.... 



8.33 



July 



22.... 



191.83 



Oct. 



21.... 



162.55 



Mar. 



30.... 



6.54 



July 



25.... 



138.04 



Nov. 



4.... 



99.92 



Apr. 



13.... 



8.57 



July 



26.... 



162.75 



Nov. 



25 ... . 



59.98 



Apr. 



27 ... . 



16.94 



July 



27.... 



220.39 



1900 





May 



11 ... . 



35.22 



July 



28 ... . 



210.63 



Jan. 



1.... 



33 32 



June 



8.... 



29.75 



July 



29.... 



232.53 



Jan. 



27.... 



65.17 



June 



25.... 



42.84 



July 



30.... 



193.26 



Feb. 



17.... 



10. 



July 



12.... 



172.55 



July 



31.... 



239.19 



Mar. 



3.... 



10.47 



July 



27... 



233. 



Aug. 



1.... 



173.5 



Mar. 



17.... 



7.38 



Aug. 



24.... 



99.72 



Aug. 



2.... 



146.61 



Mar. 



27.... 



20.94 



Sept. 



13.... 



127.09 



Aug. 



3.... 



194.92 



Apr. 



28.... 



46.65 



Sept. 



28.... 



79.73 



Aug. 



4.... 



107.58 



May 



11.. 



78.30 



Oct. 



12.... 



32.74 



Aug. 



5.... 



101.15 



May 



24.... 



180.40 



Nov. 



2.... 



83.3 



Aug. 



7.... 



138.75 



June 



9.... 



202.3 



Nov. 



16.... 



23.8 



Aug. 



8.... 



138.75 



June 



25.... 



128.5 



1902 





Aug. 



9.... 



114.95 



July 



9.... 



138.04 



Aug. 



16.... 



204.68 



Aug. 



10.... 



170.41 



July 



28 ... . 



145.11 



Sept. 



2.... 



123.76 



