556 
GEOLOGY OF THE FIRST DISTRICT. 
In some places, particularly the upper portions of the mass, in some localities along Lake 
Champlain, the gneiss seems to be a metamorphic rock, that was once the Potsdam sandstone. 
In Galway, the same rock (it is believed) is a quartz rock, sonqetimes resembling granular 
quartz rock. These metamorphic rocks are every where in the vicinity of undoubted intru¬ 
sive rocks. 
Table continued. 
STATIONS. 
Angle. 
Station d. On the crown of the hill about 750 yards N. 170° 
E. of P., on a ridge of gneiss ranging N. 44° E.; dip vertical. 
Note. The distance between P. and Q. is not to be used as a base 
line in any calculations, as its length was not ascertained accurately 
either by calculation or measurement. It was taken because it offered 
facilities for seeing several places not visible from the Station P. 
The bearing by compass also may not be accurate, as the needle did 
not traverse freely. 
To signal on Fort Putnam. 
Kosciuszko’s monument. 
Cadets’ monument. 
Second northeast peak of the Crow’s Nest. 
Butter hill peak. 
Peak southwest of above..... 
Cornwall landing behind the slope of Bull hill. 
Bull hill summit . 
High cliff back of Coldspring. 
Old Beacon. 
A high peak one and a half or two miles northeast. 
New Beacon 1. 
Mountain peak southeast of the road to Phillips’s ore bed .... 
a branch peak of the above, round backed and cultivated. 
Anthony’s Nose. 
West peak of the Dunderberg. . 
High greenstone peak (High Tornl). 
High greenstone peak, westward of the above (Little Torn).. 
Sugarloaf mountain... 
000 00 
4 31 
13 00 
33 00 
38 30 
33 00 
43 00 
49 45 
47 00 
57 50 
82 35 
97 09 
103 00 
93 00 
315 30 
312 50 
299 30 
320 50 
A high ridge extends from northeast to southwest about a mile 
east of this station southwest, eastward of the Sugarloaf 
mountain; its highest peak is nearly opposite the peninsular 
point. To this high peak. 
307 30 
Station R. At the Upper target, west side of river. 
To Kosciuszko’s monument and the northwest corner of the public 
dock. 
Wood’s monument. 
Mouth of the brook.. 
Point below the above... 
Mouth of cascade. 
Point below the Cadets’ monument. 
Gee’s point. 
Gouverneur’s point. 
Northwest rocky point of Constitution island. 
Bottom of cove east of above point. 
North point of Constitution island... 
Sand-bank near the foundry. 
Foundry wharf.. 
the cliff north of Coldspring. 
Guarry point above Coldspring and the point above this station 
inline. 
Buoy below Coldspring near the “ Brothers”. 
South Brother (rock emerges only at very low tide). 
North Brother (similar emergence).. 
000 00 
15 00 
48 00 
22 30 
17 20 
18 30 
353 15 
352 00 
318 30 
304 30 
292 00 
285 30 
281 30 
241 00 
222 30 
295 00 
294 00 
293 20 
