No.' I I Birds of Princeton. 



1901 J 



some two hundred and fifty feet above tide water. A 

 mile to the north is Mount Lucas (Mount Rose), a hill, 

 or more properly speaking, a low ridge of trap rock, 

 for the most part heavily wooded with second-growth 

 chestnut, oak and hickory, but interspersed with occa- 

 sional groves of cedar and dogwood; in some places, 

 however, the original growth remains. This ridge 

 rises in places to a height of some two hundred feet 

 above the town, down to which it gradually slopes, the 

 intervening country being farming lands with occa- 

 sional small patches of woods. On the southern and 

 eastern sides of Princeton, the slope continues for 

 one mile to Stony Brook and to the Delaware and 

 Raritan canal. From this region the land rises again 

 to the Pennsylvania Railroad, two miles further to the 

 southeast, which runs nearly parallel to the canal. Near 

 the railroad, two small ponds, Grover's and Plainsboro, 

 are drained by the Millstone River, a branch of the 

 Raritan, which, flowing northward, crosses the canal 

 at the Aqueduct, where it meets Stony Brook, which 

 rises in the highlands to the northwest. 



The section between Princeton and the railroad 

 comprises farms, except along the water courses, where 

 the low ground forms extensive swamps and marshes, 

 for the most part open but broken by bushes, cat-tails, 

 an occasional black gum or persimmon tree, and in 

 places by heavy timber. Bear Swamp, the largest of 

 these, is three miles long and in parts is almost im- 

 penetrable. It is drained by the Duckpond Run which, 

 flowing northward, empties into the canal near Port 

 Mercer. 



The remainder of the territory considered is much 

 the same as the preceding in regard to general character, 



