CLASSIFIED POSITION OF STRATA. 

 TABULAR VIEW— Continued, 



181 



Cretaceous... 



Jurassic 



Triasgic 



Permian 



Carboniferous 



Devonian 



Silurian 



Igneous 



General. 



Secondary. 



Chalk 



First glauconian 



Wealden 



Neocomien 



Oolite 



Lias 



Variegated marls 



Muschelchalk 



Magnesian limestone - . . 

 Red sandstone 



Coal fields 



Millstone grits 



Mountain limestone .. 



Red sandstone 



Slates and limestones. 



Primary. 



Granitoid. 



New Mexico. 



Greenisli sand bed of Mesillaand Dofia Ana, San Pedro valley. 



Red sandstone of Organ mountains and west to the Mim- 

 bres river. 



Basin valley, from San Pedro to Mimbres, Mesilla valley. 

 Calitro hills, Piiialeno, Chiricahui. 



General axes of 'the mountain ranges. 



