HUDSON RIVER BE©S NEAR ALBANY 517 



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Cameroceras proteiforme, Hall sp. r 



Trinucleus concentricus, Hall, cc ! 



Station 3. Dry creek, Watervliet 



The writer has been unable to find another locality with as^ 

 complete a fauna as this going southward in the strike of the 

 beds of Cohoes. This is partly due to the lack of outcrops ol 

 these beds, caused by the general n ne-s sw strike of the 

 Hudson river shales, which carries these Lorraine beds undeB 

 the drift-covered plateau to the west of the Hudson river. Fol^ 

 lowing the edge of the plateau about 3 miles to the southwest;, 

 a large outcrop is met with (station 3) along Dry creek, west of 

 Green Island. This creek has formed a deep gorge through a 

 homogeneous mass of soft gray argillaceous shales. In these 

 beds only a single layer with fossils was found. There were a 

 few specimens of Corynoides curtus and more abundant 

 stipes of Diplograptus foliaceus. The writer colore 

 station 3 (Dry creek) as a Lorraine station, as the two graptolites 

 are of themselves noncommittal, while the beds by their extreme 

 barrenness suggest their Lorraine age and also lie in the strike 

 of the Cohoes rocks. 



Station 4. South Cohoes 



The reconstruction of a sidewalk in south Cohoes brought out 

 a considerable mass of rock, which like that of Dry creek (statioii 

 3) consisted mostly of compact dark gray to black, argillaceous 

 shales with very few specimens of Diplograptus foli- 

 aceus and Corynoides curtus. 



Other outcrops of Lorraine beds 



No outcrops of rocks which by their fossil contents could be 

 attributed to the Lorraine age were found to the northwest and 

 west of Albany, as the brooks have nowhere cut through the 

 heavy drift covering to the bed rocks. This is specially observa* 

 ble along the northern affluents of the Normans kill. The next 

 outcrops occur along the Vly, a southern tributary of the Nor- 

 mans kill, at the sawmill below Voorheesville, 7 miles west of 



