110 C. D. WALCOTT OUTLOOK OE THE GEOLOGIST IN AMERICA 



especially on metamorphism and the problems of the inner earth, the 

 measurement of the linear force of crystallization, and the study of the 

 general theory of elasticity. 



PALEONTOLOGIC WORK IN 1901 



Mention has already been made of purely local studies involving 

 paleontology, but the greater part of paleontologic work is better adapted 

 to stratigraphic or geologic classification than to geographic. 



Dall's work pertained to the faunas of the Tertiary formation of Flor- 

 ida and the Tertiary formation and faunas of the Pacific coast between 

 San Francisco and Crescent City. 



Vaughan was occupied with studies of Tertiary faunas. 



Knowlton began the investigation of Upper Cretaceous strata in 

 southern Colorado and their fossil plants. He also collected and studied 

 plant remains from Tertiary beds of California, Oregon, and Wyoming, 

 and from the auriferous gravels of California. 



Stanton continued a comprehensive work on the Lower Cretaceous 

 faunas of the Texas region and began the study of the Cretaceous faunas 

 of the Pacific coast. 



Whitfield described new species from the Jurassic of South Dakota 

 and Wyoming and from various other localities and horizons. 



Wieland continued the monographic study of American fossil cycads. 



Ward studied the geology of the Little Colorado valley in Arizona 

 and continued the preparation of a second paper on the status of the 

 Mesozoic floras of the United States. 



Fontaine was engaged in studying Jurassic floras from Oregon, and 

 also continued the study of the flora of the older Potomac formation. 



Ward and Clark cooperated in the study of the Potomac terrane and 

 its life. 



White continued the stratigraphic and paleontologic study of data 

 for the correlation of the lower terranes of the Coal Measures of the Ap- 

 palachian region, and continued also a systematic work on the entire 

 flora of the Coal Measures. 



Weller studied the Kinderhook fauna of the Mississippi valley. 



Girty worked on invertebrate fossils from Lower Carboniferous rocks 

 in northern Pennsylvania and from Permian and Upper Carboniferous 

 strata of southern New Mexico. 



Williams continued his special work on Devonian faunas. 



Clarke studied the origin of the invertebrate life of the Ithaca group, 

 and made special investigation of the Guelph, Marcellus, and Hudson 

 River faunas. 



