INTRODUCTORY NOTE.


  CHEMICAL LABORATORY OF KENTUCKY GEOLOGICAL SURVEY,I
     STATE A. AND M. COLLEGE, LEXINGTON, Dec., i883. f
JOHN R. PROCTER, Director of Kentucky Geological Survey:
  DEAR SIR: Herewith I respectfully submit to you the report
of the chemical work performed in this laboratory for the Geo-
logical Survey since the publication of my last report.
  Yours, etc.,                    ROBERT PETER.