350 BO.^RD OF AGRICULTURE. 



or three miles south of the pond, where the banks are low and 

 alluvial. Excellent grass lands might be cultivated here with very 

 little labor after the first clearing had been effected. The rock be- 

 low St. John pond is a clay slate, dipping 68° S. E. Mica schists 

 appear shortly in abundance in descending the stream, which ap- 

 pear to be the predominant rock. In No. T, R. 16, clay slate 

 ledges appear, dipping 75° N. W. 



For two or three miles previous to reaching Baker lake, we 

 passed through an immense amount of low, swampy meadow land, 

 with scarcely a perceptible flow to the current. Immediately ad- 

 jacent to Baker lake is a tongue of higher land crossing the valley. 

 Hence we came to the conclusion that formerly there was a lake 

 covering this low land separate from Baker lake, though communi- 

 cating with it by a " Thoroughfare." The rise of water twenty 

 feet by an obstruction at the outlet of the existing lake, would 

 produce the same effect. The hills about these lakes are very low. 



No ledges are to be found upon Baker lake. The shores are 

 lined with coarse boulders of mica schist and quartz. Mr. White 

 thinks there is a " Lake Rampart" four feet wide and half the length 

 of the lake on its eastern shore. Woolastaquaquam stream, the 

 outlet of Baker lake, is much larger than the Woboostoock, and 

 falls very much for half a dozen miles below the lake. Near the 

 lake are schistose strata, dipping 45° N. W. Similar micaceous 

 schists crop out near the junction of the Woolastaquaquam stream 

 with the south-west branch of the Wallastook or river St. John, 

 dipping 75° S. E. In this vicinity we prospected a little for gold, 

 but discovered no more of the precious metal than at the mouth of 

 Lane brook. We went up the south-west branch a couple of miles, 

 or as far as the unusually low stage of the water would permit, 

 but discovered no ledges. Boulders of a very coarse conglomer- 

 ate — the same as those described last year upon this river lower 

 down — are common here also. The source of them is not to be 

 found on the river St. John, but further west. Sir W. E. Logan 

 describes a coarse conglomerate upon [Little] Black river, a 

 short distance upon the Maine side of the boundary line, which is 

 probably the source of these enormous boulders. Judging from the 

 strike of the rocks in this part of the State, this conglomerate belt 

 must lie very nearly along the boundary line from lake Pohenaga- 

 mook to lake Ishaeganalshogeck. From thence it must continue 

 along the Canadian side of the border, but we do not think its 

 south-western extension has ever been explored. 



