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General Note: |
Special number issued by the Rodent Control Division. |
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Contents Note: |
Contents: Natural history of the ground squirrels of California / J. Grinnell and J. Dixon -- The Columbian ground squirrel / by W.T. Shaw (p. 118-128) -- A history of ground squirrel control in California / W.C. Jacobsen -- A study of fumigation methods for killing ground squirrels / by John S. Burd and G.R. Stewart -- The Rodent Control Division / S.V. Christierson and C.A. Wilkins -- Rodent eradication work of the Biological Survey in California / by F.E. Garlough -- Appendix -- formulae for destroying rodents. |