250 STRATIGRAPHICAL GEOLOGY. 



Jackson and Bartlett. 856, 857, Dun-colored porphyry, with nu- 



843, Breccia, with granitic paste. merous crystals of quartz and feldspar. 



844, Black compact brecciated feldspar. 858, Purple porphyry. 



845, Brecciated trap — granitic paste. 859, Dark quartz porphyry, with crystals of 



846, Dun-colored quartz porphyry. quartz and feldspar. 



Mote Moitntain. 860, 861, Slate breccia. 



847, Porphyritic breccia — bits mica schist S62, 863, Breccia — greenish porphyry frag- 

 — compact paste holding c^uartz crys- ments— dark base holding crystals of 

 tals. quartz and red feldspar. 



848, Quartz poryhyry. 864, Black porphyry. 



849, Light-gray compact feldspar. 865, Purplish porphyry, with crystals of 



850, 851, Slate-colored porphyritic breccia. white feldspar and quartz. 



852, Quartz porphyry paste, with quartz 866, Compact greenish feldspar, and piece 

 fragments. of dark micaceous porphyry. 



853, 854, Slate breccia. 867, 868, Compact greenish porphyry, with 

 855, Compact feldspar holding crystals of crystals of red feldspar and quartz. 



quartz, and feldspar and slate frag- 

 ments. 



The following numbers of the catalogue were accidentally overlooked : 44, 45, Fine- 

 grained and granitic gneisses of Bethlehem group, from Franconia ; of the Montalban 

 group, 173, Coarse mica schist, Chatham; 221, Granitic rock, from half a mile south 

 of Glen Ellis falls; 243, Ferruginous gneiss, a little more than three miles from Craw- 

 ford house towards Mt. Clinton; 281, 282, Mica schists, from Mt. Hope. No. 314 is 

 the same with 251. On page 245, line 14, second column, 233 should be 223; and, 

 eleven lines below, 415 should be 405. Insert 409a after 409, page 244, line 9. Of 

 the Conway granite there should be added for Pemigewasset, the north and east parts, 

 Nos. 410-416, 422, 422a, 422b, 423, 423a, 423b, 423d, 424, 424a, 426, 440, 445, 449, 

 451, 455, 459, for the normal variety; 418, 418a, Compact feldspar and andalusite 

 schist fragments in this rock up Cascade brook; 420, 423c, 425, 427, 446, 451 a, 452, 

 454, 456, 458, Fine-grained variety; 4236, 446a, Trap; 447 approaches Chocorua 

 granite. Of Albany granite, 595, from Pemigewasset. The numbers 442-457, under 

 Waumbek, came from Pemigewasset. 



Note. Plate XII, the map illustrating the position of the specimens belonging to 

 the White Mountain collection, shows, in addition, the location of the numbers pertain- 

 ing to Sections IX, VIII, and a little of VII west of Sandwich. These are drawn of a 

 larger size, I have, also, for convenience, given the numbers, in a few cases, of speci- 

 mens collected outside of the district. They will be referred to hereafter in the de- 

 scription of the adjoining territory, save what belong to the Coiis and Essex district, 

 which have been already catalogued. In Whitefield, Nos. 694-719 have been mostly 

 enumerated upon page 86, but are here classified more intelligently. No. 694, with the 

 majority of the others, may be seen to be situated to the south and east of the upper 



