BULL. GEOL. SOC. AM. 



VOL. 14. 1902, PL. 63 



Figure 1. — Two Layers of Hornblende Schist Alternating with White Pegmatitic and Dark Micackous 



Gneisses 



Small apophysis, 45 centimeters long, near center. Morningside avenue west near 119 street 



Figure 2.— Contact of Hornblende Schist 



Hornblende schist above passes into hornblende gneiss at junction ; fine grained micaceous gnei 

 beneath ; partly penetrated by pegmatite at lower margin. Morningside avenue above West 118 street 



HORNBLENDE SCHIST LAYERS AND CONTACT 



