REPORT OF THE SECRETARY. 79 



Work of Prof . Lester F. Ward.— Prof. Lester F. Ward, paleobotanist 

 of the Survey, spent the mouths of July and August making large 

 and valuable collections of fossil plants in the vicinity of Grlendive, 

 Montana. In September he proceeded to Fort Benton, Mont., where he 

 joined Ur. White and accompauied him down the Missouri Kiver, 

 adding largely to his collections of fossil plants. Since his return to 

 Washington the latter have been carefully arranged for study. This 

 study is facilitated by the acquisition of the fossil plants described by 

 Professor Lesquereux in his quarto report made to the Survey of the 

 Territories. Professor Ward has prepared a catalogue of fossil plants, 

 with their geologic horizons indicated. 



Work of Prof H. S. Williams. — Prof. H. S. Williams, assigned to the 

 study of the Devonian section of Western New York, has reached some 

 interesting conclusions as the result of this study during tbe season. 

 He worked southward across Allegany County, New York, into Penn- 

 sylvania, and thence across McKean County, in the latter State. Two 

 months' work furnished data for the construction of a continuous section 

 (geographic and geologic) in a nearly direct line from Batavia, Genesee 

 County, New York, to Alton, McKean County, Pennsylvania, passing 

 from the base of the Devonian to the Coal Measures of the Carboniferous. 

 He also prepared a meridional section, starting in Oneida County, New 

 York, crossing Madison County, and terminating in Delaware County. 

 This section passes geologically from the Carboniferous limestone to 

 the red rocks referred to the Catskill formation. A preliminary re- 

 port on the faunas of the Upper Devonian along the meridian from 

 Cayuga Lake southward through Tompkins, Tioga, and Chemuug 

 Counties, in New York, and Bradford, in Pennsylvania, has been pre- 

 pared for publication and will be issued as a bulletin of the Survey. 



Work of Mr. L. C. Johnson. — In the district of the South Atlantic 

 Mr. L. C. Johnson has been carrying on palseontologic work, preparatory 

 to a more careful survey of the structural geology to be undertaken 

 hereafter. He has made extensive collections from the Tertiary and 

 Mesozoic formation in the Gulf States, especially in Alabama. The 

 greater part of July was spent in Tuscaloosa, from which point 19 boxes 

 of specimens were sent to Washington. During the early part of August 

 he was investigating the boundary line between the Cretaceous and the 

 Carboniferous, and between the rotten limestone of Greene County, Ala- 

 bama, and the Eutaw group of the Cretaceous. Later he made a re- 

 connaissance of the Tombigbee and Alabama Rivers. The section con- 

 structed by Mr. Johnson will go far towards defining the line between the 

 Cretaceous and Tertiary. October and November were mainly devoted 

 to the study of the Tertiary near Bridgeport, Ala., and the Cretaceous 

 in Autauga County, Alabama. December was devoted to the investiga- 

 tion of the Tertiary. Large collections were made and many interesting 

 facts developed. One of the results of the work will be to extend the 

 boundary line of the Tertiary from 6 to 10 miles farther north than is 

 usually shown on the geologic maps of this region. 



