232 THE CANADIAN NATURATIST. [June 



the oceanic waters from which the quarty was deposited, the gold 

 in the short segregated veins of subsequent origin was transferred 

 from the bedded leads or auriferous interstratified slates. 



" In every district in Nova Scotia it is remarked that the gold 

 frequently " runs in streaks;" that is to say a zone of rich aurife- 

 rous quartz occupies a certains breadth in the lead, while to the 

 east and west of that zone the quartz is comparatively poor in the 

 precious metal. It is also found that in diflferent districts the 

 " Gold Streak" has a diiferent angle with the horizon, and that 

 sometimes the course of the rich zone is coincident with the rip- 

 ples or swells in the leads, — also that the Gold Streak varies in 

 direction in different leads. 



" At Montague the Gold Streak dips at an angle of 45 degrees 

 to the west, so also do the corrugations in the lead. 



" At Sherbrooke in some mines the Gold Streak on the south 

 side of the anticlinal dips to the east at a high angle, and on the 

 north side to the west at about the same angle. 



" At Lawrencetown the dip is westerly at a low angle. The 

 dip of the corrugations is the same. 



" It is probable that in each lead the Gold Streak has a course 

 peculiar to itself, with an easterly and westerly trend. Known 

 facts respecting the Gold Streak are too few and too indefinite to 

 permit of any conclusion being drawn for any number of leads, 

 but where one lead is taken into consideration, much useful infor- 

 mation may be obtained by studying the structure of the lead and 

 the direction of the " Streak." 



" In the shallow synclinal at Lawrencetown for instance, the 

 dip of the Gold Streak being westerly at a low angle on the south 

 side of the synclinal, its dip will probably be easterly at the same 

 angle on the north side. On an anticUnal if the streak or zone 

 dip easterly on the south side, it will be found dipping westerly 

 on the north side, in the continuation of the same lead or sheet 

 of auriferous quartz. At Montague there are two very rich zones 

 on the same lead about 520 feet apart, dipping west at an angle 

 of 45 deorrees. The breadth of one zone is about 300 feet of the 

 other 250 feet ; the yield of gold in each has been tolerably uni- 

 form, and averaged 3 J ounces to the ton. On the west side of 

 these zones the yield diminishes abruptly to 5 dwts. per ton ; on 

 the other side it shades off to 3 dwts. per ton. 



" The distribution of the zones at Sherbrooke leads to the in- 

 ference that the gold was originally deposited in belts from the 



