Gre^or RocKs 189 



flows through open pasture lands. The bed is broad 

 and shallow, strewn with numerous small limerock 

 boulders drifted down from the hills with the floods of 

 spring. The larger boulders wear scars and dimpled 

 erosions of the glacial period. I took time to explore 

 the ledges above, where the depressions reveal the ter- 

 races of an ancient lake. The prevailing evergreen 

 trees here appear to be hemlock and cedar — the Ameri- 

 can Arbor Vita: — whose roots cling to the clifis, their 

 green spires lending a touch of coloring to the bare- 

 faced walls. 



I saw from the banks here the distant pot-hole forma- 

 tions in the brook, from which the stream had taken 

 its name. As I approached these marble basins, I 

 found three in succession — one above the other — follow- 

 ing the course of the stream — a narrow passage eroded 

 through crystalline marble and limestone. The first 

 or lowermost one was like a small lakelet overflowing 

 its brim. The second one was a typical pot-hole, re- 

 volving its stones in its whirling waters. The bowl 

 was about six feet deep, of a circular — or rather ellipti- 

 cal form, about twenty-six feet in circumference. The 

 stream entered through the middle of the northern 

 rim, and had eroded a spout-like gutter, causing the 

 water to flow in a rapid, seething manner as if poured 

 into the basin below. Here the greenish water boiled 

 and whirled, finally with an added force leaping forth 

 through a deep spout over the lower rim of the pot, 

 carrying with it small stones and marble dust — the 

 lower rim thus being worn away. As the bowl becomes 



