252 Geology and Mineralogy of Salisbury. 
detached measuring two inches, and enclosing one of blue. 
Fig. 4, represents a bed still more twisted. Veins of gran- 
ite are sometimes broken off and thrown out of 4g 
course, as in fig. 5. 
In Loreen I would remark Ist. that ltece granite 
occurs in horizontal veims as in fig. 1, it does not appear 
probable that they were deposited in this situation, but 
rather in perpendicular ones. For I believe there is suffi- 
cient evidence to prove that the mica-slate, was once de- ~ 
posited in horizontal beds and that the present vertical | 
position was caused by an exertion of force below sufti- 
cient to break and upturo the strata. 
There are veins which approach nearer to a perpen- 
dicular position than the example given. In this case the 
mica-slate is less vertical—so that the relative posites is 
still preserved. 
2nd. Granitic beds as fig. 3. were deposited in the same 
period as the mica-slate ‘and were elevated to their pre- 
sent position at the same time. . 
Arr. X.—Sketch of the Geology and Mineralogy of Salis- 
bury, Con. ; by C. A. Ler. 
[Prepared for the Lyceum 1 of Natural History in the Berkshire Medical 
Ynstitution. | 
Geological Remarks. 
A sINGLE township affords but little room for geological 
investigation. The inclination of the strata can be obser- 
ved, and the relative position of the rocks; but it is only 
op the large scale that the science can be studied to ad- 
vantage, or any theory be formed which will rationally 
account for all the facts. 
The principal rocks in Salisbury are mica-slate and 
granular limestone. The former is most abundant and 
forms all the highest hills, and the *faconick range.— 
*'This is written Taghkannuc in Pres. Dwight’s Travels,and as it is the 
Indian name, had perhaps better be retained. Taconick is the popular pro- 
nunciation, 
