GEOLOGY OF THE WHITE MOUNTAIN DISTRICT. 243 



Catalogue of the White Mountain Collection. 



The area included in this catalogue corresponds essentially with that 

 of the White Mountain district, save that the specimens from the north 

 of Moose river have been incorporated into the Coos County collection, 

 given on pages 81-86. The locations of the specimens will be found 

 accurately portrayed upon Plate XII. Owing to discoveries and addi- 

 tions made after the writing out of the catalogue, the order is not strictly 

 a numerical one, but it can be easily comprehended by those who choose 

 to compare the positions of the specimens on the plate with the colors 

 on the final map, or the descriptions of the stratigraphical and lithologi- 

 cal parts of the report, or to study the rocks themselves in the museum 

 at Culver Hall. The arrangement by age is not quite perfect, but will 

 not produce embarrassment. Where several specimens came from very 

 nearly the same locality, all their numbers are not drawn upon the map. 

 Unimportant numbers are often omitted, as in the case of many traps 

 and small beds. In the museum there is a manuscript catalogue specify- 

 ing the lithological character and localities with all needful particularity. 

 The same is true of the Coos and Essex District collection. 



PORPHYRITIC GNEISS. Waterville. 



Franco7iia. 29, 30, 31, 35, 495, 496, 640, 642, 652, 

 1-6, 8, 12, 15, 17, 23, Porphyritic gneiss. Porphyritic gneiss. 



7, 14, Trap. 33, Gneiss. 



10, 13, Coarse granite veins. 34, Trap. 



11, Mica and feldspar, mica predominat- 641, Banded quartz vein. 



ing. Sandwich. 



2,2,2,1 Fine-grained gneiss. 36-39, Porph}Titic gneiss. 

 Lincoln, Conway. 



9, 19, 20, 21, Porphyritic gneiss. 40, Porphyritic gneiss. 

 16, Hornblende schist. BETHLEHEM GNEISS. 



Landaff. Franconia. 



18, Porphyritic gneiss. 41, 42, 48, 49, Granitic gneiss. 



Thornton. 43' 4^) Chlorite schist layers. 



22, Fine-grained gneiss. 47> Chlorite schist, with magnetite. 

 24, 26, 32, Porphyritic gneiss. Lincoln. 



27, Coarse granite vein. 50, 52, Chloritic gneiss. 



