278 BOARD OF AGRICULTURE. 



the route of the section to Brewer we find scarcely any ledges, the 

 country being covered to a considerable depth by alluvial deposits, 

 as it is upon the east bank of Penobscot river. At Brewer the 

 rock is very quartzose, dipping from 30°-60° N. 20° W. Across 

 the river in Bangor the rock is similar, dipping from 45°-55° N. 

 30° W. and N. W. The application of the term talcose to these 

 schists would be more appropriate than to any other ledges on the 

 whole section. Yet the rock here is not really talcose ; it has no 

 magnesia in it, as the analysis shows, and an inspection of many of 

 the laj'ers exhibit particles of mica snugly stowed away. Often the 

 strata in Bangor exhibit interesting curvatures. Professor D. T. 

 Smith, of the Theological Seminary, pointed out one such instance 

 to us about two miles west of the city, which was very instructive, 

 showing also the difference between the planes of stratification and 

 foliation (or cleavage.) Such an exhibition is uncommon along the 

 line of the section. 



Three miles north-west from Penobscot river, at W. Boynton's 

 house, the schists dip at about the same angle, N. 40° W. At I, 

 Tozier's, a mile further, may be seen an iuterstratification of clay 

 slate and slaty talcose quartz rock, dipping 65°-*I0° north-westerly. 

 In the edge of Glenburn the rock is more compact, with thicker 

 layers. In Glenburn and Kenduskeag there are occasional varia- 

 tions from the normal north-westerly dip, but these are supposed 

 to be local matters. The section, thus far, runs on the stage road 

 to Kenduskeag village, crossing the Kenduskeag river in Ken- 

 duskeag. 



Beyond Kenduskeag village drift deposits obscure the ledges for 

 a great distance. The road passes over a horseback from the vil- 

 lage to a cemetery in South Corinth, a distance of three miles. At 

 a school house and cooper's shop nearly four miles from Kendus- 

 keag in South Corinth the first ledge with the south-easterly dip of 

 the west sid^ of the great synclinal axis appears, although it prob- 

 ably begins much sooner. Observations on both sides of the road, 

 which we had not time to make, will settle the exact point where 

 the middle of the basin is. The schists at the school house decom- 

 pose readily, perhaps containing a carbonate, and dip 80° S. 25° 

 E. Adjacent ledges have a smaller dip. Near East Corinth the 

 rock is more slaty and argillaceous. Opposite J. M. Shaw's house 

 the layers are very much convoluted on a small scale with an aver- 

 age dip of 45° S. 15° E. About a mile and a half north of East 



