byron like those of the Black Rim Hills, Minnesota. Above comes in whole jacket the Canyon Lake shale. Are then noticed at Amsterdam. Along the river from just north of the bridge may be seen the contact of the Lowville with the Beckmantown. Bridges North by Amsterdam Bridgeage like Lowville 5-6 feet Beckmantown 20 ft about 30 W. The angular unconformity between the Beck- mantown and the Bridgeage is easily seen here. The Lowville is the typical milky white (blue on- side) stone but the bridgeages are not more developed than those many circular then and sharp crystalline radial tufts (1/8 meter, ten in diameter). There is considerable intra/mo- natural englamate and as usual at joints