82 



PLANKTON OF WINNEBAGO AND GREEN LAKES. 



Taale XIII. — Numbers of copepod larvae per square meter in 

 Lake Winnebago. 



Date. 



No. 



Date. 



No. 



Date. 



No. 



18991 





1900 





1901 





July 5-11. 



11, 186 



Mar. 17 ... . 



40, 222 



Jan. 19.... 



1,904 



July 12-18. 



74,970 



Mar. 27.... 



45,696 



Feb. 2 . . . . 



952 



Julv 19-25. 



69,496 



Apr. 28.... 



367,472 



Feb. 16.... 



1,904 



July 26- 





May 11.... 



297,976 



Mar. 2.... 



952 



Aug. 1 



8,568 



May 24.... 



115,906 



Mar. 16.... 



1,190 



Aug. 9-15. 



50,932 



June 9 



12,376 



Apr. 13.... 



17,136 



Aug. 16-22. 



43,078 



June 25 ... . 



49, 980 



Apr. 27.... 



57, 120 



Aug. 23-29. 



34,510 



July 9.... 



31,416 



May 11.... 



30,464 



Aug. 30- 





July 28.... 



129, 472 



June 8 



118,048 



Sept. 5 



51,408 



Aug. 22.... 



101,150 



June 25 



15,232 



Sept. 16.... 



6,664 



Sept. 8 . . . . 



42, 840 



July 12.... 



5,712 



Oct. 7.... 



49, 504 



Sept. 22.... 



25, 704 



July 27.... 



3,808 



Nov. 4 



32,368 



Oct. 20.... 



2,856 



Aug. 24 



27,608 



Nov. 25.... 



48,552 



Nov. 6.... 



8,568 



Sept. 13 ... . 



48,744 



1900 





Nov. 21.... 



1,428 



Sept. 28 



39, 508 



Jan. 1 



12,376 



Dec. 5.... 



1,904 



Oct. 12.... 



21,896 



Jan. 27.... 



13, 804 



1901 





Nov. 2 . . . . 



22, 848 



Feb. 17.... 



18,088 



Jan. 5 



952 



Nov. 16.... 



20,944 



Mar. 3.... 



21,896 







1 





Table' XIV. — Numbers of copepod larvae per square meter in 



Green lake. 



Date. 



No. 



Date. 



No. 



Date. 



No. 



1899 





1900 





1901 





July 16.... 





July 2.... 



1,904 



April 1 



11,424 



Aug. 1 



249, 424 



July 16.... 



100, 912 



April 20.... 



5,712 



Aug. 25.... 



69, 258 



Aug. 4 



172,264 



May 4 . . . . 



13,328 



Sept. 18.... 



73,304 



Aug. 18.... 



310, 352 



May 18.... 



62,832 



Oct. 4 . . . . 



28, 560 



Sept. 3.... 



137, OSS 



June 1 



319,872 



Oct. 19.... 



9, 520 



Sept. 15.... 



67,544 



June 22.... 



32,368 



Oct. 31.... 



34, 176 



Sept. 29.... 



57, 120 



July 8 . . . . 



84, 152 



Nov. 27 ... 



72,352 



Oct. 16.... 



1,904 



July 20.... 



118,048 



1900 





Oct. 27.... 



36, 176 



Aug. 3.... 



144, 704 



Jan. 13 



47,600 



Nov. 10.... 



36,176 



Aug. 27.... 



180, 880 



Jan. 20.... 



28,560 



Nov. 24.... 



51,408 



Sept. 18.... 



317, 968 



Feb. 23.... 



20,944 



Dec. 21.... 



196,112 



Oct. 19.... 



28, 560 



Mar. 22.... 



19, 040 



1901 





Nov. 9 . . . . 



22, 848 



April 20 ... . 



22, 848 



Jan. 14 



45,696 



Dec. 9.... 



74,256 



May 5 . . . . 



1,904 



Jan. 25.... 



32,368 



1902 





May 21.... 



59,024 



Feb. 9 . . . . 



95, 200 



Feb. 19.... 



38,080 



June 2 



81,872 



Feb. 23.... 



51,408 







June 16 



142,800 



Mar. 9.... 



20,944 







