87 



fishery on the stream, though alewives were fairly numerous 

 previous to 1900. 



Second Herring Brook. This brook has its origin in Tor- 

 rev's Pond, Norwell, and flows in a southerly direction for 1| 

 miles. There are no fishways at the dams at Torrey's or 

 Turner's ponds, but in the latter case this omission was sanc- 

 tioned by a town law. Previous to 1898 alewives were reported 

 spawning in abundance in the still water and ditches, but 

 changes made in the channel of the river so increased the tide 

 that these spawning grounds were destroyed. A few fish are 

 still taken below the Turner Dam. 



Third Herring Brook. This stream rises in Jacob's Pond 

 near Assinippi, and flows southeasterly for 3 miles, forming a 

 series of four artificial ponds. 



Indian Head River. This stream, with its tributaries, com- 

 prises the headwaters of North River. It is used chiefly for 

 industrial purposes, is obstructed by dams, and receives trade 

 wastes from various tack and rubber factories. At South 

 Hanover it receives Indian Head Brook, which has its origin 

 in Indian Head Pond, connected with Maquan Pond, and in 

 its course of 3 miles through cranberry bogs, with their partial 

 obstructions, has a permanent barrier at Hanson, on the site 

 of the mill dam built by Captain Nathaniel Thomas in 1694. 



Just below the junction of Drinkwater River and French 

 Brook are four dams without fishways: at the National Fire- 

 works plant, the tack factories of E. Phillips & Son, and the 

 property of W. C. Waterman & Co., all four of which permit 

 trade wastes to enter the stream. 



Barker's River. Barker's River, which joins Indian Head 

 River to form the North River, rises in Furnace Pond, which, 

 in turn, is connected with Great and Little Sandy ponds. Be- 

 low Furnace Pond the river is not obstructed, is 8 to 10 feet 

 wide, and flows through a large area of cranberry bogs. Fish- 

 ways are located just below Furnace Pond and at Chalmer's 

 Upper Pond, but are no longer needed, as during the spring 

 run all the dams on the stream are opened. 



At Pembroke is located the public herring weir, comprising 

 a fish trap, box, bridge, fish Jiouse and dam. Here the inhab- 

 itants of the town of Pembroke are permitted to take fish with 



