Permian Formations of Kansas— Prosser. 159 
stamped as follows: "Approved [signed] C. D. W., Direc- 
tor." The names of the above formations, properly credited, 
together with descriptions and classification, were first pub- 
lished in the Journal of Geology in December, 1902.* 
The statements on pages 54, 55, 56, 57 and 59 of Bulle- 
tin No. 211 of the United States geological survey, pub- 
lished the last of October, 1903, in which the authorship of 
the above mentioned formations is apparently claimed by 
Mr. George I. Adams, are, to say the least, very erroneous. 
In the summer of 1896 the writer spent a few days in 
southern Kansas in attempting to correlate some of the 
upper Carboniferous and lower Permian rocks with the 
more prominent formations of eastern central Kansas. At 
that time the marked lithologic change in certain formations 
when followed southward from the Cottonwood Falls quad- 
rangle was not clearly known and as the time permitted 
only a very hurried reconnaissance the results were not 
satisfactory. This was especially true regarding the at- 
tempted recognition of the Cottonwood limestone, to which 
the greatest amount of time was devoted. The later re- 
searches of Drs. Beede and Sellards, described in the 
August number of the American Geologist, show, that 
when followed southward from the Cottonwood Falls quad- 
rangle, the lithology of the Cottonwood limestone and over- 
lying Florena shales changes rapidly so that it is very dif- 
ficult to determine the limestone's horizon in sections. 
After the writer's reconnaissance he published a prelimin- 
ary paper on "The Permian and upper Carboniferous of 
southern Kansas"* in which a "Section along the Missouri 
Pacific railroad from Reece to the crest of the Flint Hills+ 
and another "from Grenola to Grand Summit"* and at Cam- 
bridge§ were described. To the section from Reece to the 
Flint Hills the writer was able to give but a half day for in- 
vestigation and from below Grand Summit to Cambridge, 
only a day. According to Drs. Beede and Sellards, the soil 
and loose material had been removed from the railroad right 
* Op. dt.. vol. >:, pp. 703-719, and date of publication was prior to- 
* Kan. Univ. Quart., vol. vi, 1897, pp. 149-175. 
t Ibid., pp. 152, 153. 
± Ibid., pp. 160-162. 
§ Ibid . pp. 166, 167. 
