388 University Geological Survey of Kansas. 
ported by Dr. J. W. Beede, who was in charge of the party, as 
probably somewhat above the Winfield limestone. 
SUMNER STAGE. 
Wellington Shales.—An interesting plant horizon has been 
discovered in the Wellington shales, from which four collections 
have been made—the first by Mr. Charles Sterling, the remain- 
ing three by the writer. The horizon is near the top of the 
formation in Dickinson county. The principal locality is three 
and a half miles south of Banner City, and within a few feet 
of the overlying Cretaceous. A small lot of plants was also 
obtained from a locality four miles south of Carlton, and an- 
other from a mile east of Salina along the east bank of the 
Smoky Hill river, in the section referred doubtfully to the 
Wellington by Prosser (vol. 2, p. 68). 
The Banner City locality when first discovered was consid- 
ered as probably in the Marion formation. The possibility of 
the locality lying within the Wellington was however recog- 
nized (Trans. Kan. Acad. Sci., vol. XVII, 1900, p. 208). The 
stratigraphy of this section was worked out in more detail by 
Dr. J. W. Beede during the summer of 1908, and the present 
reference of the locality to the Wellington is in accordance with 
the correlations given in this volume. 
Acknowledgments. 
The following report on the Kansas Carboniferous and Per- 
mian plants was begun in 1899 and has been added to from time 
to time as opportunity afforded. Very important additions to 
the literature of fossil botany have been made since the earlier 
pages of the manuscript were written. The results of these - 
later papers touching the species here described have been in- 
cluded whenever possible. The time at the writer’s disposal, 
however, does not admit of as complete a revision of the manu- 
script preceding its publication as could have been desired, and 
the paper can hardly fail to give evidence of its disconnected 
preparation. The study was begun at the suggestion and 
under the direction of Prof. S. W. Williston, then paleontologist 
to the Kansas State Geological Survey, whose interest and en- 
couragement in the work it is a pleasure to acknowledge. Dur- 
ing the writer’s stay at the Yale Museum, 1901-1903, Dr. 
Alexander W. Evans very materially assisted him in the com- 
parative study of related recent plants. The late Prof. C. EH. 
Beecher also very kindly made accessible the fossil-plant col- 
