1 ( ci.nGK AL >rrCE--I< X. 



135 



From the -landpoint of bare bottom and hunni- I'oiid ?<i \> 



very much advanced. I'. ;ed mar ihe outlet, i; ha- 



!< rome filled \\ith (k-<\i\-:: nn and in- IHI-. now 



Toyed, indicau-d an adxanr. d sfc 'inj\iral >lc with 14. 



tt differs from 14 in ] _ qualitatively "\ -tation 



[ some other eh; - of youth. Tin- di!"tVivn<-t - l>i.t \\rfii 



1411 and i4//ha\' idy been discussed. 



In T.-'.lili- 1 1. ponds are arrangi in order 



d th- di 'ril-ution of ti-h i- shov n. 



I!. 



i 





1 



1 

 I 















* * * 



\\ hen the ponds an ! age, 



i noti. the distribution of tlu- li-h. and \\t 



al on. 



I\'. l\ 1 1 ' 

 \\ V li. 'ii of 1 i hat 



ill'' ]>|. :.[l(d \\illi A the 



of (In- p. : ' i nd (B) tl of 'inn lhal 



clianiii 1- ha\ e been I 



h i- a \\i-ll-kno\\ii |iond> till with plant dctritu^. 



\\"ilh i In- lillin- "I ponds, tlu rmidii i -n- ! | ; . 1\ 



in a drlinitr diivr;in. I ' \\hich ] in the >anu- 



