256 APPENDIX TO PART IV. 



17. Diorite (porphyritic calcareous), Dixville notch, p. 164. 



18. Mica diorite (calcareous), Stewartstown, p. 165. 



19. Gabbro, Waterville, p. 166. 



20. Gabbro, Mt. Washington river, p. 168. 



21. Gabbro, Gilford, p. 169. 



22. Gabbro (decomposed), Waterville, p. 168. 



23. Labradorite (loose). Stark. 



24. Felsite, Mt. Washington river, p. 175. 



25. Felsite, Bemis brook, p. 176. 



26. Black quartz porphyry. North-east Waterville, p. 178. 



27. Black quartz porphyry, Albany. 



28. Black quartz porphyry, Mt. Lafayette. 



29. Gray quartz porphyry (little quartz), Groveton, 180. 



30. Red quartz porphyry, Pemigevvasset, p. 185. 



31. Red quartz porphyry, Albany, p. 185. 



32. Red quartz porphyry, Waterville, p. 185. 



33. Quartz porphyry (granitic), Waterville, p. 185. 



34. Quartz porphyry (white), Dorchester. 



35. Quartz porphyry, Waterville. 



36. Porphyry conglomerate, Waterville, p. 186. 



37. Porphyry conglomerate, Albany, p. 186. 



38. Quartz porphyry. Twin mountain. 



39. Quartz porphyry (claystone porphyry), Mt. Willard, south side, p. 185. 



40. A breccia of argillitic schist formed by the eruption of quartz porphyry, Mt. Pe- 



quawket, p. 184. 



41. A breccia composed of a mixture of argillitic schist and quartz porphyry, Mt. Pe- 



quawket. 



42. Quartz porphyry, including clay state, Mt. Willard. 



43. Quartz porphyry (granitic), Mt. Pequawket, p. 188. 



44. Quartz porphyry, Mt. Pequawket, p. 184. 



45. Muscovite granite (garnetiferous), Barrington. 



46. Muscovite biotite granite. Concord, p. 194. 



47. Muscovite biotite granite, Fitzwilliam, p. 194. 



48. Muscovite biotite granite, Marlborough, p. 195. 



49. Muscovite biotite granite, Troy, p. 195. 



50. Muscovite biotite granite, Manchester, p. 195. 



51. Muscovite biotite granite (little muscovite — dark), Plymouth, p. 195. 



52. Muscovite biotite granite, Hooksett, p. 195. 



53. Muscovite biotite granite, Sunapee, p. 195. 



54. Muscovite biotite granite, Farmington. 



55. Muscovite biotite granite, Essex county, Vt. 



56. Muscovite biotite granite, Effingliam, p. 195. 



