THE GEOGRAPHY OF GROTON. 49 



In the record of James Parker's land, on July 6, 1666, " the 

 pond called Goodman Martin's Pond " is mentioned. The 

 following Article, found in the warrant for the town-meeting 

 held on September 17, 1792, seems to show that the outlet 

 of the pond was formerly through Hog Swamp and Half- 

 Moon Meadow into James's Brook, though there is now no 

 other evidence to confirm this view. 



Art. 8. To see if the Town will order the water running from 

 Martin's Pond to be turned into the old Channel as it formerly used 

 to run, through the Town, and appoint some proper person or per- 

 sons to remove the obstructions and Effect the Business. 



In the proceedings of the meeting, it is recorded that this 

 Article was " Past in the Negative." A measurement of the 

 pond was lately made, when frozen over, which proves it to 

 be much smaller than it was a half century ago. 



Outlet: Martin's Pond Brook into the outlet of Knop's 

 Pond, half-way between that pond and Cow Pond. 



Massapoag Pond —on the eastern border of the town, but 

 lies mostly in Dunstable and Tyngsborough, covering an area 

 of 56 acres. It is now used as a storage basin of water by the 

 Vale Mills Manufacturing Company of Nashua, New Hamp- 

 shire, and in dry seasons it is drawn upon for a supply. 



Outlet: Salmon Brook, which empties into the Merrimack 

 River at Nashua. 



Sandy Pond — lying wholly in Ayer, and covering 80 

 acres. A large quantity of ice is taken from its surface in the 

 winter, the ice-houses on its borders being connected with 

 the Fitchburg Railroad by a branch road. 



Outlet: Sandy Pond Brook, which flows into Nonacoicus 

 Brook. 



Springy Pond — a small sheet of water connected with 

 Knop's Pond by a brook. 



Swan Pond — was formerly a small sheet of water, which 

 has now entirely disappeared, and is forgotten by the present 



