APPENDIX. 



73 



APPENDIX. 



Table I. — Hecord oj total volumes of plankton per square meter in 



Green lake. 



These statistics are of limnetic plankton, averages being made when 

 more than one collection was made at a given date. 



Date. 



Vol. in 



Date. 



Vol. in 



Date. 



Vol. in 





ccm. 





ccm. 





ccm. 



1899. 





1900. 





1901. 





July 16.... 



38.67 



July 2.... 



181.36 



Apr. 1 



77.35 



July 31.... 



103.29 



July 16.... 



71.4 



Apr. 20.... 



32.37 



Aug. 25.... 



34.75 



Aug. 4 



104.72 



May 4 



22.13 



Sept. 18.... 



35.7 



Aug. 13.... 



64.26 



May 18.... 



47.6 



Oct. 11.... 



65.45 



Sept. 3.... 



142.8 



June 1 



40.46 



Oct. 19.... 



57.6 



Sept. 15.... 



53.55 



June 22.... 



59.5 



Oct. 31.... 



43.55 



Sept. 29.... 



51.65 



July 8.... 



61.88 



Nov. 27.... 



71.4 



Oct. 16.... 



53.55 



July 20.... 



76.16 



1900. 





Oct. 27.... 



49.98 



Aug. 3.... 



45.22 



Jan. 13.... 



50.69 



Nov. 10.... 



47.6 



Aug. 27.... 



30.7 



Jan. 20.... 



65.45 



Nov. 24.... 



47.6 



Sept. 18.... 



43.32 



Feb. 23.... 



197.54 



Dec. 21.... 



35.7 



Oct. 19.... 



35.7 



Mar. 22.... 



197.54 



1901. 





Nov. 9.... 



30.94 



Apr. 20.... 



95.2 



Jan. 14 



19.01 



Dec. 9.... 



29.75 



May 5 



107.1 



Jan. [26.... 



33.8 



1902. 





May 21.... 



122.81 



Feb. 9.... 



53.55 



Feb. 19.... 



46.17 



June 2 



226.1 



Feb. 23.... 



54.74 



Sept. 12.... 



77.35 



June 16 



399.84 



Mar. 9.... 



73.78 



Sept. 13.... 



71.4 



