XIV BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 



Page 



I. On the relationship of the Eocene lemur NotJiarctus to the Adapidie 

 and to other primates 419 



II. On the classification and pliylogeny of the Lemuroidea ; by William 



K. Gregory 419 



Problem of the Texas Tertiary sands ; by E. T. Dumble 447 



A stratigi'aphie disturbance through the Ohio Valley, running from the 

 Appalachian Plateau, in Pennsylvania, to the Ozark Mountains, in Mis- 

 souri ; by James H. Gardner 477 



Index 485 



ILLUSTRATIONS 

 Plates 



I'age 



Plate 1— Adams : Portrait of Alfred E. Barlow 12 



2— KuNZ : Portrait of Albert S. Bickmore 18 



3— Clarke : Portrait of Horace C. Hovey 21 



4 — Upham : Portrait of Newton Horace Winchell 27 



" 5 — Fairch ild : Portrait of Joseph Le Conte 47 



"6 " Le Conte memorial lodge, Yosemite Valley 48 



" 7 — -Rich: Peculiarities of glacial erosion in central Illinois 72 



" 8 — CusiiiNG : East and west walls of Brooklyn channel 205 



" 9 — Branson : Red Beds of western Wyoming 217 



" 10 — CuMiNGS and Galloway : Morphology of the Trepostomata .... 369 



" 11 " " Morphology of the Trepostomata 370 



" 12 " " Morphology of the Trepostomata 371 



" 13 " " Morphology of the Trepostomata 372 



" 14 " " Morphology of the Trepostomata 373 



" 15 " " Morphology of the Trepostomata 374 



16 — Washington and Day : Fumaroles in the Atrio del Cavallo 377 



" 17 " " Cone of Etna from the near observatory 



(south) 381 



" 18 " " Interior of Etna crater from southeast. 382 



" 19 " " Outer bocca of Etna from north 383 



" 20 " " View of Vulcano from Lipari (north). 384 



" 21 " " Crater of Vulcano 385 



" 22 " " Salts at Vulcano 386 



" 23 " " Large fumarole at Vulcano 387 



" 24 " " Crater of Stromboli 388 



" 25 — Dumble : Yegua formation and volcanic ash 460 



" 26 " Corrigan sands and Fleming clays 464 



" 27 " Contact of Jackson and Corrigan formations 467 



Figures 

 Rich : 



Figure 1 — Sketch map of Illinois 71 



Crook : 



Figure 1 — Talus produced by the retreat of the vertical cliff AG, 



allowing for lateral weathering only 75 



