BEACH AND COVE GEAVELS. 49 



hillside, and for 30 to 50 feet above the terrace the rock is nearly bare of till. 

 This terrace is very distinct along the west side of Chickawaukie Lake, 

 where it has been excavated for road gravel. The stones are distinctly worn 

 on the angles, but not so much so as in ordinary glacial gravel. This beach 

 extends northward to the village of Rockville and then bends eastward and 

 southward along the east side of the valley. When the sea stood at this 

 elevation, the Chickawaukie Valley would be a bay nearly one-half mile 

 wide, and since there would be few if any islands to the south, it would be 

 well exposed to the waves. Three times in as many different years I have 

 visited the place in order to measure by aneroid the height of this beach, 

 and each time I have been prevented by local storms from making accurate 

 measurement. 



Another excellent locality for measuring the height of the highest 

 beach is on the southern slope of a rather high range of hills situated about 

 3 miles north and northeast of Machias Village. The face of the hill is 

 such that, when the sea stood at high level, there would be hardly any 

 coves or bays, and it trends nearly east and west. The country to the 

 south is low, so that it would all be submerged and this hill would be 

 exposed to the unbroken surf One can take aneroid readings and be down 

 to the level of tide water in a few minutes. At 220 feet the top of a terrace 

 of rolled gravel and cobbles was observed. The stones were distinctly 

 polished and somewhat rounded at the angles. This terrace is from 10 

 to 30 feet wide, and is a prominent feature of the hillside. The gravel 

 becomes thinner above the terrace, a sort of sheet overlying the till. 

 Rolled stones could be found here and there at 240 feet. At 250 feet only 

 ordinary till stones could be found, and from this point upward the hillside 

 was searched for almost a mile, only till being found. The contrast in 

 shape between the stones of the till and those of the beach gravel was so 

 great that there was no difficulty whatever in distinguishing them. The 

 sea did not here lay the rock bare, or at least did not leave it bare. The 

 average of these and many similar measurements, with a good aneroid, 

 give the height of the highest beach near the outer coast line as about 225 

 feet for the region east of Penobscot Bay, and 230 feet for the region 

 between that bay and the Kennebec River. West of the Kennebec I have 

 not yet been able to measure the height of the highest beach. A good 



JffiON XXXIV 4 



