Show lal lai ea ex 1 ili li tt it Cli vinge color it is ax well ell enoi known n that tie tl e water ot of many I 1 likes ikee exl exi hibits characteristic col cot orl or L tl e lake ot genea attl e end of S N itz erland is bine blue v hile bile the lake take of con constance aaice at the eafern en benl enl I 1 of SN it I 1 is iq grcen green implies 1 anty since tie tl e natural color of v ater is 13 ine trip k green lake take his its water aligi aly il u led with ith impurities parities im aich in may ay bi 14 exceedingly fine particles se sep P aracely dinv inv aible professor Prote asor SI ring of tha tile university of liege pays that green takes sometimes become absolutely col cot oress for a time and he lie liaa has found that this su men iden ch ell inge of line is 13 due to the washing into the tile lakes takes of mud mad colored red by mi lc to of iron red is CO comple cople to green and the result of t the lie mixture is that the gleen color of ill the e N cafer aber becomes for the time neutralized |