xxvi APPENDIX. 



n/46. Stigmaria, -witli central axis, Mansfield. 



v^7. Monocotyledon, ( V ) upper part of leaf, Hardon mine, Mansfield. 

 \ 48. IMonocotj Icdon, (?) upper part of leaf, Mansfield. 

 v49. Monocotyledon, (?) central part of leaf, Mansfield. 



50. Flattened stem, pointed, Wrcntham, south part. 

 V 51. Large fern, Mansfield. (Plate 23.) 

 -•/'52. Neuropteris, Wrentham. (See Plate 21, figure 1. Plate 22, figure 4. 



Plate 27, figure 4.) 

 \/ 53. Splienopteris, Hardon mine, Mansfield. (See Plate 21, figure 1. Plato 



27, figure 1.) 

 S 54. Neuropteris, Hardon mine, Mansfield. 

 \/55. Fern, Hardon mine, Mansfield, 

 y 56. Pachyptcris (?) or Odontopteris, (?) Mansfield. (See Plate 22, figure 



3. Plate 23.) 

 v/ 57. Small reeds, Wrentham. 



• . 58. Small reeds and Sphaenophyllum, Hardon mine, Mansfield. 

 y 59. Pecopteris and Sphaenophyllum emarginatum (?) Mansfield. (See 



Plate 22, figure 2.) 

 •y60. Sphenopteris, Mansfield. 



61. Asterophyllites, &c., Mansfield. 

 V'62! Annularia, Mansfield. (Plate 22, figure 3.) 



V^3. Asterophyllites or Equisetum, Mansfield. (Plate 21, figure 2. Plate 22, 

 figure 1.) 



— 64. Arenaceous mica slate, Worcester. 



— 65. Arenaceous mica slate, anthracite locality, Worcester. 

 -^66. Arenaceous mica slate, anthracite locality, Worcester. 



~67. Arenaceous mica slate with talcose aspect, Worcester. 

 •^ 68. Arenaceous mica slate with talcose aspect, Worcester. 



— 69. Arenaceous mica slate with talcose aspect, Worcester. 



— 70. Arenaceous mica slate with talcose aspect, Worcester. 

 ~ 71. Arenaceous mica slate with granite veins, Lunenburg. 

 -■^ 72. Arenaceous mica slate, mostly quartz, Groton. 



•^ 73. Arenaceous mica slate, mostly quartz, Groton. 



"" 74. Talco-arenaceous slate, (boulder,) Worcester. 



"• 75. Arenaceous mica slate, Dracut. 



~ 76. Arenaceous mica slate passing into clay slate, Worcester. 



— 77. Arenaceous mica slate, talcose, Lowell. 

 ~ 78. Arenaceous mica slate, Methuen. 



— 79. Arenaceous mica slate, mostly quartz, Worcester. 



— 80. Arenaceous mica slate, Andover bridge. 



— 81. Arenaceous mica slate with veins of quartz, Worcester. 

 — - 82. Arenaceous mica slate. South Hampton, New Hampshire. 



— 83. Arenaceous mica slate. East Sudbury. 



— 84. Arenaceous mica slate, Webster. 

 -'So. Arenaceous mica slate, Oxford. 



— 8G. Plumbaginous mica slate, contorted, Worcester. 



— 87. Plumbaginous mica slate, Ward. 



