594 STKATIGKAnilCAL Gi:OLOGY. 



the course of the strata. The rock crops out in several places as far as 

 to the cemetery close by the north end of Round bay. We sec it again 

 on the point and hill back of the Wicrs station. It is the only rock seen 

 between Wicrs and Meredith Village. On Wadleigh's hill arc two large 

 veins of quartz, — one, on the summit, a fo(;t wide, with a norLli and south 

 direction; the other of double width, nearer the lake, and showing decom- 

 posed ankcrite and dolomitic crystals. Both are vertical, and traceable 

 for half a mile. There are several exposures of this rock between Mere- 

 dith and Lake villages on the nearest road. The outcrops at the former 

 village dip north-west. At S. M. Lawrence's, west from the Centre, are 

 ledges of hornblende rock — an unusual occurrence in this formation. On 

 the east side of the north-west cove, ledges of porphyritic gneiss are 

 abundant all the way to Spindle point. Rollins hill, the highest land on 

 the Neck, is compo.sed of a hard schistose rock, peculiar to this forma- 

 tion, dipping 80'' N. 65° W. The middle ridge of the Neck shows por- 

 phyritic gneiss back of W. Mead's. This is the eastern limit of the rock. 

 Stonedam island would naturally belong to this group. This rock occurs 

 on the high land west of Little pond, and near B. G. Young's on the high 

 land to the north. On top of the hill west of the Center Harbor landing 

 this rock appears in not very great amount, perhaps three fourths of a 

 mile wide. There are two important localities in Center Harbor, — one 

 at the extreme south end of Squam lake, by an old saw-mill, the other on 

 Sunset hill. All the ledges here dip northerly. 



The barb of the fish-hook is to be found in the country south of Mere- 

 dith Neck, I have not examined Pitchwood island, but Eagle island, a 

 mile off Wicrs landing, is composed of porphyritic gneiss. The same is 

 found at the south end of Governor's or Davis island, dipping S. 85° E. 

 The north end of Gilford is underlaid by the same material, and probably 

 the area of Smith's Neck. Adjacent to the northern end of the Belknap 

 range the porphyritic gneiss dips 75*^ N. 80° W. Welch and the other 

 islands opposite have not been explored. 



About three miles from Alton ]5ay landing, on the west side of the 

 water, is a mass of porphyritic gneiss, intercalated with the other variety, 

 dipping west. The high land bordering the water may contain consid- 

 erable of this material. It also occurs on a cross-road at J. P. Gilman's, 

 with sicnite. An area known to be longer occurs between Avery hill and 



