i66 ' The American Geologist. a..^*. 1&0& 
35 feet' 6 inches. Numbers 25 to 36 represent the MaihYM 
formation, with a thickness of 59 feet, while numbers 37 to 
39 are the Florence flint, 22 feet of which is e^r^Qsed. ur- 
Adams rstna generalized section over this same railroad 
from Gtenola to Grand Summit and Burden. Ho-#^Ver the 
only section he gives is that of plate ix which appears to be 
entirely, generalized. 1 He correctly states that Burden ir 
higher geologically than- Gr&nd Summit* Tfevyever he repre- 
sents the dip <"to the^west ^feeing rfiacfo less than the- slope^ 
while in fact "iT is about as steep as the railroad grade. In 
other words he represents almost all of the Burden section 
as being a repetition of the Grand Summit section while as a 
matter fof fact none of the. rocks are repeated. He also 
shows the same layer of limestone appearing in the escarps 
ment east of Grand Summit, at GrOtrs'e creek. Little Cedar 
creek and. the Walnut river at Winn" eld, while tne writer 
if 1 .? 
finds the rocks occurring in the latter place (Fort Riley 
limestone are siratigraph really above those at the top of 
the grafle at^Burden. It is possible, howWe^'thai&Ms whole 
section f is but a generalization and the plate merely illus- 
trates that, the rocks dip to the west in a general way witn 
no attempt tot represent it accurately, or show, the relation 
of the strata, n ► >vo0 .1 
— According to Adams the dip is 10 feet to the mile to the 
west. Cambridge is five miles west and four miles 'south of 
Grand Summit, and the difference of elevation between, the 
two places is 193 feet,* but the difference in altitude between 
-Hrng Kt vri'.' >■ ■ to 
number 27. of Prosser s section and the quarrv at Cambridge 
is .given^as 14^ feet making the dip, as , given bv Prosser, 10 
.Imtmifc fin <**> ■ ■: I r ?£^9di tuniavodS I 1 ■, 3 A . • s i lupv 
feet per mile to the south. west. Howeyer, the dip is prob- 
ably more to west than to the southwest, so that it would be 
?n" to " ' i rTjtw lK"i r '' i • ' xi 
greater in, a westerlv direction than is shown between Grand 
°}jmmijg . ■_. ■ -; 
Summit and Cambridge. , „ ,„,„., 
...... . «- ., • 
.The first account of the Grand Summit section was pub- 
lished by Brqadhead in 1883, or 1884.* This, paper was a 
- 1 ..... A ' 
generalized one and is amplv discussed by Prosser.* Broad- 
..-;■,,•-- ■■.:,> ■ • •"-•.' ; r j. ■-.' ■:■• - : w -w- '■.:'::'::'■". 
- t A section, -from t Oa]£n,n to Wellington.. By G. J. AjJarns^Univ.. Geol, 
SurV. 'Kan's./ t, v. 27. pis. i, ix, ' 1896. 
* Bull. t T . S- Geoh. ,Surv_ 160, t .pp, 225. 229,, 1899. . The elevations grtven . 
are 143$ and 1245 feet, respect fully. 
t Trans St. Louis Acad. Sci., iv, pp. 486, 487. 
' CTOpV-cit. pi>. • 160-M8. • 
'- ■ ;. 
