Excerpt from Rat Proofing Buildings and Premises Note - This bulletin supersedes Farmers' Bulletin 1638, issued in 1930 by the U. S. Department of Agriculture a contribution of the Bureau of Biological Survey which was consolidated in 1940 with the Bureau of Fisheries to form the Fish and Wildlife Service, U S. Department of the Interior. Other Farmers' Bulletins herein referred to are obtainable free from the U. S. Department of Agriculture. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books.

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