APPENDIX. xxxix 



— -30. Spangled mica slate, Goshen. 



■- 31. Spangled mica slate, Plalnfield. 



-- 32. Spangled mica slate, (jointed,) Plainfield. 



— 33. Spangled mica slate, Norwich. 



— 34. Argillo-micaceous slate, Goshen. 



— 35. Argillo-micaceous slate, jointed, Greenfield. 



— 36. Argillo-micaceous slate, rhomboidal, Greenfield. 

 " 37. Argillo-micaceous slate, Charlemont. 



— 38. Argillo-micaceous slate, Hawley. 

 39. Argillo-micaceous slate, Heath. 



—40. Argillo-micaceous slate, Lanesborough. 



41. Glazed argillo-mica slate with quartz, Glen, at Leyden. 



—42. Contorted argillo-micaceous slate, Guilford, Vermont. 



— 43. Contorted argillo-micaceous slate, Hancock. 



~-44. Argillo-micaceous slate with waved surface, Bradford. 

 * 45. Contorted argillo-micaceous slate with layers of quartz, Guilford, Ver- 

 mont. 

 ~ 46. Contorted argillo-micaceous slate, Whately. 



— 47. Contorted argillo-micaceous slate, Guilford, Vermont. 

 —•48. Contorted argillo-micaceous slate, Bernardston. 



—49. Contorted argillo-micaceous slate with layers of quartz, Williamstown. 



50. Argillo-micaceous slate, Saddle Mountain. 



— 51. Arenaceous mica slate, Norwich. 



— 52. Arenaceous mica slate passing into gneiss, Bolton. 



— 53. Arenaceous mica slate, argentine locality, Westhampton. 

 -'54. Arenaceous mica slate, Norwich. 



~-55. Vesicular arenaceous mica slate, Chesterfield. 

 ~^56. Vesicular arenaceous mica slate, Chester. 



— 57. Vesicular arenaceous mica slate, Norwich. 



~~58. Arenaceous mica slate, Woonsocket Falls, Cumberland, Rhode Island. 



— 59. Arenaceous mica slate, Chester. 



— 60. Arenaceous feldsjiathic mica slate, Enfield. 



— 61. Arenacous mica slate, Chester. 

 •62. Whetstone slate, Enfield. 



— 63. Whetstone slate, Enfield. 



64. Whetstone slate, Norwich. 



65. Arenaceous mica slate, Sherburne. 



■- 66. Arenaceous mica slate, used for monuments, Halifax, Vermont. 



-'67. Arenaceous mica slate, Greenfield. 



68. Arenaceous mica slate, jointed, Deerfield. 



— 69. Arenaceous mica slate, jointed, Deerfield. 



— 70. Argillo-arenaceous slate, reddish, at junction with Connecticut Rivw 



sandstone, Glen at Leyden. 



— 71. Argillo-arenaceous slate, bent, Leyden glen. 



— • 72. Argillo-arenaceous slate, bent, Leyden glen. 

 --73. Plumbaginous mica slate, Hawley. 



— 74. Mica slate, common, Southampton. 



