GEOLOGY OF THE CONNECTICUT VALLEY DISTRICT. 



343 



Catalogue of the AmjMonoosuc Collection. 



The same general remarks will apply to this catalogue and the accom- 

 panying maps, that have been made heretofore respecting the similar 

 illustrations descriptive of the Coos and White Mountain areas. In par- 

 ticular, it may be said that these numbers appear on two distinct maps, 

 the one of the entire field, and of the limited area in Lyman specially 

 surveyed with reference to the mining interests. A few of these num- 

 bers have been placed upon Plate XII. 



PORPHYRITIC GNEISS. 

 Bethlehem. 

 I, Porphyritic gneiss. 



Littleton. 

 2-7, Porphyritic gneiss. 



BETHLEHEM GNEISS. 



Lisbon. 



17-20, 22, Gneiss, with much black mica. 



Littleton. 

 21, Gneiss, with much black mica. 

 22 a, Gneiss, sHghtly epidotic. 



ATLANTIC GNEISS. 

 Littleton. 

 8-11, 13-16, Gneiss. 

 9 a, Diorite dyke in 9. 

 12, Hornblende schist. 



Lisbon. 

 25, 46, Hornblende rock. 

 26-28, 30, 32, 33, 40-42, 44, Limestone. 

 29, 45 a, 45 b, Mica schist. 

 31, 34, 35, 55, Calcareous schists. 

 36, Conglomerate. 

 37-39, Gneiss. 



43, Junction of limestone and granite. 

 45, Magnetite. 



45 c, Ferruginous mica schist. 

 47, Hornblende and chlorite. 

 54, Trap. 



Landaff. 



48, Gneiss, with garnets. 



49, Mica schist. 

 50-53, 56, Gneiss. 



57, Granitic gneiss. 



LISBON GROUP. 

 Littleton. 

 59-65, 67, 68, Green schists. 

 66, 72, Ti, Sandstones. 

 69, 70, 75, ']•], Diabase. 

 71, 74, 76, 78-81, Green schists. 



82, Hornblende dyke. 



83, Galena and copper pyrites. 



84, Gossan — Albee mine. 



85, Talcose gangue of copper vein. 

 86-89, Greenstones. 



89 a, 89 c, 89 e, f, g, Argillitic mica schists. 



89b, Diorite. 



89 d. Green schist. 



89 h, Protogene. 



891, Mica schist. 



868, Compact feldspar. 



869, Hornblende schist. 



Lisbon. 

 23, 24, 90, 91, 96, Hornblende schist. 



58, 99, g-i, 1, 622, Quartzite. 

 92-95, Labradorite diorite. 



97, 99, 99b-d, 99 n, Dioritic schists. 

 99 a, Iron ore nodule. 



