SOME LOCAL DETAILS. 



201 



The comparative tal)le given in chapter 11. shows that 

 somewhat similar coiuliti(jiis prevail over the great plains 



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V'lL' 





^^i 



^^^^5»i|i^i^ 



IS 





1. Secliou <if Drill ou Milk liivi'i' --(n) Uniililei'-clay ; ('0 nldci- river alluvium ; (o) newer 



river alluvium ; {il) .suiracc uiattur. 



2. Suoticm (if Drift at l.t'U-^ Hi\i'i--(.i; l.nwiu'clril't, cliicliy li>cal,auil with false lieiMiiij^ 



(//)u|ii.er ilrifl with larL,'e travelleil boiiMers. [Aftiu- Dr. (1. M. Dawsuii.] 



west of lake Superior, the formation of which liave l^een 

 described by Dr. (1. M. Dawson in his ]leport on tlie 49lh 



