A General Index to the Agricultural Reports of the Patent Office, for Twenty-Five Years, from 1837 to 1861; and of the Department of Agriculture, for Fifteen Years, from 1862 to 1876 ...

A General Index to the Agricultural Reports of the Patent Office, for Twenty-Five Years, from 1837 to 1861; and of the Department of Agriculture, for Fifteen Years, from 1862 to 1876 ...