CONTENTS. 



iTlie letters in parentheses preceding the titles are those used to designate the papers for advance publication.] 



, , , . Page. 

 (A) Lithologio subsurfaci^ rorrelation in the "Bend series" of north-central Texas, by M. I. (lolchiian ipubliahed 



Mar. 7, 1 921 ) 1 



(Bl Ortlmulax, a Tertiary guide fossil, by C. W. Cooke (published Sept. 29, 1921) 23 



(CO Graphic and mechanical computation of thickness of strata and distance to a stratum, by .J. B. Mertie. jr. 



(published March 14, 1922) 8<) 



■ (D) Stratigraphic sections in southwestern Utah and northwestern Arizona, by J. B. Reeside, jr.. and Harvey 



Bassler (published March 22, 1922) .53 



(E) The Byrarn calcareous marl of Mississippi, by C. W. Cooke (published March 17. 1922) 79 



- The Foraminifera of the Byram calcareous marl at Byram, Miss., by J. .\. Cushman (published March 17, 



1922) 87 



(F) The Foraminifera of the Mint Spring marl menil)er of the Marianna limestone, by J. k. Cushman (pub- 



lished March 28, 1922) 123 



(fS) The flora of the Woodbine sand at Arthurs Bluff, Tex., by E. W. Berry (published March 23, 1922) 1.53 



(H) Geology of the lower Gila region, Ariz., by C. P. Ross (published March 29, 1922) 183 



Xf? The flora of the Cheyenne sandstone of Kansas, by E. W. Berry (published April II, 1922) 199 



Index 227 



III 



