[ ^3 3 



CLASS III. FOSSILS. 

 L PETRIFACTIONS. 



36. ZooLiTH": petrified Mammalia. 



37. Ornitholith : petrified Birds. 



38. Amphibiolith : petrified Amphibia. 



39. Ichthyolith: petrified Fifhes. 



40. Entomolith: petrified I nfe£ts. 



41. Helmintholith : petrified Worms. 



42. Phytolith; petrified Vegetables. 



43. Grapholith: petrified refembiances of other Tub^ 

 (lances. 



II. CONCRETE. 



A. Naturals 



44. Calculus: concrete within animal mattcn 

 4^. Tartar: concrete within vegetable matter. 



46. Eagle-stone: concrete within ftones. 



B. Elementary, 



47. PuMiCE-STONE: conciete in fire. 



48. Stlactite: concrete in air. 



49. ToPH : concrete in water. 



III. EARTHS. 



A. Derivativii* 



50. Ochre: metallic earth. 



B. Primitive, 

 51.- Sand: rough earth. 



52. Clay: plafti,c earth. 



53. Calx; efFervefcent earths 



54. Soil: combudible earth. 



