146 PROCEEDINGS OF THE PALEONTOLOGICAL SOCIETY 



indication is tliat tlie Briones is a separate minor cycle of deposition. Tliis 

 would mals;e tlie San Pablo series consist of three minor cycles of deposition — 

 Briones, "Lower San Pablo,"' and "Upper San Pablo." 



PHYSICAL AND ECONOMIC GEOGRAPHY OF OREGON 

 BY WARREN DU PRE SMITH 



(Ahfitract) 



The paper, which is not yet completed, though practically all the chapters 

 are in first draft, is the result of several years" work in Oregon on the part of 

 the author and embraces as complete a survey of the existing literature as 

 can be found dealing with the subject. The table of contents appended will 

 give an idea of the subject-matter. A great deal of the data in this paper has 

 never yet appeared in print and some of the material drawn on from the 

 literature has received new interpretation. 



Among the chief points emphasized in this research is the influence of 

 physiographic and climatic (particularly those of light and winds) features 

 in Oregon ; the part played by geographic location in Oregon"s history and 

 development. Still another theme is the matter of relationship of political 

 and physical boundaries. The land problem in Oregon is taken up under such 

 heads as the reserve lands, the logged-otf lands, the arid lands, the undrained 

 lands. There is a chapter on the geographic location of cities and some at- 

 tempt is made to prognosticate, from a study of the geology and geography 

 of the State, the future of Oregon"s economic development. 



GEOLOGY OF PALESTINE 



BY REGINALD W. BROCK 



LATE CENOZOIC MAMMALIAN REMAINS FROM THE MEADOW VALLEY REGION, 

 SOUTHEASTERN NEVADA 



BY CHESTER STOCK 



{ Abstract) 



J. E. Spurr, in a paper entitled "Descriptive geology of Nevada south of 

 the fortieth parallel and adjacent portions of California," has directed atten- 

 tion to the Pliocene continental deposits occupying an extensive territory in 

 the Meadow Valley region of southeastern Nevada. The determination of age 

 of these beds was, liowever, not based on paleontological evidence. 



Two areas are now known in this province of Nevada where well exposed 

 sedimentary deposits have yielded mammalian i-emains. The northern area 

 comprises Meadow Valley, an intermontane inclosure bounded on the west by 

 the Highland Range, on the east and south by the Mormon Range, and on the 

 north by the Pioche Range. Near the village of Panaca, Lincoln County, Ne- 

 vada, the deposits in which mammalian remains occur consist of red-brown 

 and green colored sands and clays. Cross-bedded sands and gravels as well as 

 tuffaceous materials are also present. The beds show the effect of slight fold- 

 ing. Several series of terraces are developed in these sediments. The mam- 



