BULL. GEOL. SOC. AM. 



VOL. 21, 1909, PL. 52 



Figure 1. — View below the .Tuxctiox of the North and South Braxche.s 



FiGUKE 2. — View beeow the .Tt'xctiox of the North axd South Braxches 

 THE NORTH ROCK STREAM 



