570 



ARNOLD AND HANNIBAL— MARINE TERTIARY [April ig. 



Locality S7 1 sandstone, cuts along O. W.-Milwaukee Railway east of 

 Balch, Washington. (H. Hannibal.) 



Locality 58; shaly sandstone, bluffs along Olequa Creek at old Ainslee 

 Mill below Winlock, Washington. (H. Hannibal.) 



Locality 113; shaly sandstone, bluffs along Cowlitz River below mouth of 

 Drew Creek, iV^ miles east of Olequa, Washington. (H. Hannibal.) 



Locality 145; shaly sandstone, water-tunnel on hill east of Chehalis, 

 Washington. (H. Hannibal.) 



Partial List of Species iu the Olequa Horicon of the Tejon Series (Middle 

 Eocene) at Little Falls, Washington. 



Species supposed to be characteristic of this horizon. 



Locality 65; sandstone, bluffs along Olequa Creek between falls and town^ 

 Little Falls, Washington. (H. Hannibal.) 



Locality 66; tuffaceous sandstone, bluffs at junction of Olequa and Still- 

 water Creeks, Little Falls, Washington. (H. Hannibal.) 



