Catalogues of Rocks and Minerals. 267 



36. Quartz, imbedded in greenstone, with sulphate of 

 iron, Pacquenack mountain, New-Jersey. 



37. Madreporite, found fifty feet below the surface in 

 excavating at Corlaer's Hook, New-York. 



38. Epidote from a rock of sienite, containing stilbite, 

 West-Chester. 



39. Prehnite, Patterson, green mamillary. 



40. Marine petrifactions. This specimen is character- 

 istic of the rock composing the nucleus of a mountain 

 range, extending thirty miles, commencing near Esopus, 

 and running two miles west of Catskill. 



41. Scaly talc, Staten Island. 



42. Stilbite, greenstone range near Scotch plains, New- 

 Jersey ; mesotype ? 



43. Encrinites, Catskill. 



44. Native Hidrate of Magnesia, Hoboken. 



45. Magnesite, Staten Island. 



46. Brucite, Sparta, Sussex County, New-Jersey. 



47. Granular limestone, with brown tourmaline, Kings- 

 bridge. 



48. Cellular quartz, Staten Island. 



49. Friable granular limestone, with a vein of Calt 

 spar, Kingsbridge. 



50. Gneiss, near Kingsbridge, much used in New-York. 



51. Indurated talc, Staten Island. 



52. Oxide of iron and manganese, New-York, three 

 miles from the city. 



53. Greenstone, Hudson river. 



54. Analcime, Patterson. 



55. Steatite, Staten Island. 



56. Terebratulas, Catskill. 



57. Fine grained greenstone, Weehawk, New-Jersey. 



58. Fine sandstone, quarried under greenstone, Pracknes 

 mountain, New-Jersey. 



59. Purple and gray sandstone, under greenstone Palli- 

 sadoes. 



60. Brown Hematite, Staten Island. 



61. Greenstone, Palisadoes, New- Jersey. 



62. Quartz, with a slight amethystine tinge, and with 

 cuneiform cavities, Patterson. 



63. A rock with an argillaceous base, alternating with 

 sandstone, under greenstone Palisadoes. 



