CONTENTS 



Gazin, C. Lewis. A further study of the lower Eocene mam- 

 malian faunas of southwestern Wyoming. 98 pp., 14 pis., 2 figs. 

 Jan. 17, 1962. (Publ. 4474.) 



Greenewalt, Crawford H. Dimensional relationships for fly- 

 ing animals. 46 pp., 17 figs. Apr. 6, 1962. (Publ. 4477.) 



KiER, Porter M. A revision of the cassiduloid echinoids. 

 262 pp., z^4 pis., 184 figs., 7 charts. June 26, 1962. (Publ. 4500.) 



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