Sort By:
  1. Cattle-fever ticks and methods of eradication / W.P. Ellenberger and Robert M. Chapin.
    By: Ellenberger, W. P. - Chapin, Robert M.
    Publication info: Washington, D.C. :U.S. Dept. of Agriculture,1919.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Cattle  Cattle dip  Cattle tick  Control  Parasites  
    View Book
  2. Studies on changes in the degree of oxidation of arsenic in arsenical dipping baths /
    By: Chapin, Robert M.
    Publication info: Washington, D.C. :U.S. Dept. of Agriculture,1915.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Arsenic  Cattle dip  Cattle tick  Control  
    View Book