EQUATORIAL SECTION. 



25 



elevation of the earth into the higher or gaseous 

 portion, which is alone appropriate to our nature. 





W 



'V, 



""^If^n 





[Tlie iscale of doptlis i» fifty times greater than that o/len^hs.] 

 F.g. 7.— Equato;ial Section of the Earth. 



In iill probability the thickness of the earth's 



