VI 



contents: 



from the calcareous ftrata, § i^^ 24, 25. — fromtfieat 

 gillaceous, § 26, 27. — from the bituminous, § 28, 29 



•s 



from the faline. 



32. 



Salt-mines in Chefhire. 



Trona of Africa, § 34, 35* 



3. Pofition of the Strata. Page 40 



r 



Strata formed at the bottom of the fea, § ^6^ Appa- 

 rent elevation not produced by the retreat of the fea, 

 § 37. Strata, horizontal, when formed, § 38, 39. Dif- 

 turbance of the ftrata proved from their inclined por- 

 tion, § 40, 41, 42. — from Ihifts, &c. § 42. Shifts of 

 different dates, 7b, Diflurbance of the primitive llrata 

 vifible at their jun£lion with the fecondary, § 43, 44. 

 This diflurbance produced by a force directed up- 



/ 



ward, § 45, 46, 



This force the effed of fubterra- 



neous heat, § 47, 48. 



SECTION 11: 





i 



PHENOMENA PECULIAR TO UNSTRATIFIED BODIE?. 



I. Metallic Veins. 



P-57 



Veins defined. They contain fubftances that were once 

 infufion, § 49, 50. Metallic veins, native metals, &c. 

 § 51. Native copper, § 52. Manganefe, § 53. Frag- 

 ments of rocks included in veins, ^ S5' Shifting and 

 heaving of veins, § 56, 57. Veins of different dates, 



§38 



Stratification not found in veins. Coating of 



the fides, what, § 59. Metallic veins mofl common 

 in primitive llrata, but not confined to them, § 60. 



a- Whinllone. 



f 



i 



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1 



