THE STONE AGE IN: NOVA SCOTIA.—PATTERSON. 243 
the action of the waves rolling them against one another, just as 
they are found at the foot of the cliffs there, or partially operated 
on, besides a great variety of stone chips and flakes from differ- 
ent places, (Nos. 124, 170, 225.) 
2,3. Irregular flahes of obsidian, ete., produced by a single 
blow, and two edged narrow flakes of obsidian produced by pres- 
sure, ete. We have nothing to represent these from Nova Scotia 
but there is in the collection a piece of a small obsidian knife 
from Mexico, (No. 173.) 
4. Unfinished Arrow and Spear-heads.—Of these the col- 
lection affords an abundant representation, (Nos. 99, 114, 115, 
150, 246.) 
5. Arrowheads.—The collection contains over sixty specimens 
from Nova Scotia. The majority of these are from Merigomish 
Pictou County, but there are also some from St. Mary’s, Antigon- 
ish, Annapolis, and particularly Lunenburg County. In the 
material of which they are composed, there is a difference be- 
tween those obtained on the North shore of the Province, and 
those from the South and West. The former are generally 
composed of hard flinty slate, felsite, quartzite, or other of the 
rocks found in the metamorphic rocks in the mountain range in 
the interior, and occasionally white quartz. The latter are 
generally formed of the agates, jaspers and other fine grained 
minerals found in-the crevices of the Trap Rocks on the Bay of 
Fundy. The action of the weather brings these down to the 
foot of the cliffs, where being rolled together by the action of the 
waves, they form nodules of from two to four inches in diameter. 
These seem to have been a favorite material for the formation of 
arrow heads. In some respects they are very suitable for the 
purpose. They are hard, fine grained, and in cleavage form 
sharp edges, but not being stratified they are apt in splitting to 
break into short pieces, so that the implements formed of them 
are generally small, though sometimes very pretty. 
These are found of all shapes that are represented in other 
countries, some being leaf shaped, with base rounded or point- 
ed, some triangular, some straight-sided with base more or 
less concave, some notched near the base, some are stemmed in 
