ECOLOGICAL SUCCESSION. 



ihc lr\- -t.-uson and just at the close of tin- probable plankton 

 maximum for the year. 



TAHLI-: III. 



I.TS IN Si|.i [ I' is' IN I'AKI- I'l.k M 11.1. ION. 



Analysis b] Mariner and Ho<kii me.. III. i. Tlu- o.Iln timi- \\vrr nuuk- 



mi i Wolf Lake contain^ all tin- -pi-. i-- ,>i ti-h ..t all the 



ami i- a'Mi-'l tut ( i iinp.nison. 



Tin- tal.lt- -h<>\\- no utui-al <|iialitati\e features. Thi-rc i- a 

 iiotaMi- di in total solids in the older pond-. 1 In- ma\ U- 



dm- to tin- lixiim ot tin- solids by organi-m- 



j Gases Ph< gasanalysesweremade with two facts in view: 



Water ma\ I H- al .normal in gas content . -i > a- to make it impos- 

 sible La ti-h t,. live Marsh, 'oH; Juda\ and Wagner, '08; Birge 

 and Iuda\.'ii Phe eggs of all food fishes known to be in 



the pond- piol'.il.lv rest oil the bottom ..t \e-etation during 

 inrnl.ation. Nnnr ti-h remove the \egi-tatioii I mm tin- l.otii.m: 

 otln-r- di po-it eggs on bare bottom; a te\\ ma\ attach --L;- to 

 \ . ^rtation. 



I- determine the general suitably of tin- pond- for tin 1 

 place- of li-h. t\\o determination- of the gas content of the 

 \\ater- \\ere made. 



TAULI IV. 



t >\yi;'-ii in cul.i. . 'iitiiuf -t.-rs per liter; collivti'in- i" i J .in. ln-li>\v tin- -in; 

 ..! tin- fp.-n \\ a) 







Thr tal.K- -ho\\ - an oxygen roiitrnt in all the pond-. Hiltirirnt 

 -ii|)port an> ot tin- tislu--. 



