A Shi(hi of the Bclriilcre /ieds. — ('/•(if/ni. 857 
pal formations of tlie epochs of partial or complete submer- 
gence in contiguous areas are represented at their proper 
horizons throughout the Ozarks. although in a much less 
developed condition. 
The geological history of the Ozark plateau, since the Jura 
pei'iod, may be summarized as follows : 
1. First seen in the Cretaceous period as a low marshy plain, 
with river systems similar in extent as now, — the Jura-Creta- 
ceous peneplain. 
2. Undergoing an elevation of some hundreds of feet, re- 
sulting in the excavation of deep broad valley's throughout 
the border portions of what had become the Ozark plateau, — 
Tertiary valleys. 
3. Probable slight subsidence, resulting in accumulation of 
a red loamy and gravelly flootl-plain deposit in the valleys, — 
the Lafaj^ette formation. 
4. A well marked, and to a certain extent permanent, uplift 
of the region, resulting in the formation of a new set of val- 
leys in the bottom of the older ones, — Quaternary valleys. 
5. Temporary and comparatively rapid, but 3'et consider- 
able, depression of the area, resulting in the deposition of a 
loam in the valleys, — the Columbia formation. 
6. Re-elevation to approximately the present level, with re- 
excavation of valleys which had become partially filled by 
loam. — the present valleys. 
A STUDY OF THE BELVIDERE BEDS. 
By F. W. Cragin. Colorado SpriiiRs, Colo. 
The name Belvidere was once employed in the writer's man- 
uscript as a designation for the Comanche Cretaceous shales 
of the Belvidere district of southern Kansas, but was with- 
held from publication. These shales were linally named the 
Kiotra shales in volume 5 of Colorado College Studies. The 
name Kiowa was considered preferable to that of Belvidere 
because in Kayser-Lake's Text-book of Comparative Geology, 
now in use in many leading American institutions, tiie term 
Belvedere beds is given (page 365) for certain Tertiary sands 
and gravels of Austria. 'I'he proposed name Belvidere dif- 
fered in s})elling b}^ one letter only, and in ])ronunciation 
-scarcely enough to distinguish it in ordinary conversation 
