U. S. Geo Zoy if at StMvey. 



PT^tr xrvT 



SfaJOSUL. 



Sta.XXXJ/l. 



Att.Sayae n . 







Tolcanic Forelanel onKortTiJForTiJPierrc'sJR. (jjooking s.jb.) 



n. i'oJramc. Jb. .JkrcHtran. c. raJmeox,otc. 



Canon ot NortH :ForK JPicrre'Jr Miver. ^ , ^ , ^ 



a..X,amiiMJe,J porphyritic tracTiyte . «■ rxrik trachyte . 



