588 Jal J S3pAUM AUINVO) Ail, (Ge, ILIZ OUND) 
but if this usage is to be adopted it would seem desirable that 
the formation be properly defined and some general section of 
it, as typically exposed, be given. Since, however, Henrietta 
was first applied to a distinctive phase of the formation, that 
displayed in southwestern Missouri, it will probably be found 
better in the end to adopt a general term for the whole region, 
retaining the terms now in use, Pawnee, Oswego, Henrietta, 
Appanoose, and Raccoon River beds, for local use. This is the 
more advisable, since, while the beds show certain general char- 
acters common to all and are probably of essentially contempo- 
raneous origin, they really contain the record of deposition in 
four and perhaps more essentially distinct minor geological 
provinces. 
H. Foster BAIn. 
A. G. LEONARD. 
