INDEX. 



469 



Page. 



'Wooster.L.O xxn, 53 



"Worring and Auer's invention of physio- 



typy 380 



■Wright, George M 15,214,215,331 



Wyoming Division, The 10 



Eocene lake hasin 249 



Xanthne 386 



Xenophanea on the significance of fossil 

 shells S8S,398 



Page. 



Yale College mnsenm; Wyoming fossils ... 251 



252,255,261,265,276 



Teates,O.M 5 



Tellowstone National Part snrvey XX, 15-19 



Tonng, A. A., descrihes a sandstone 220 



Tucoites 415,448 



Zamia angnstifolia 447 



Zenker, Jonathan Carl, ContrihntionB o^ to 



paleobotany 411 



Zirkel 81» 220 



