Keywords: The field treatment of tobacco root-rot BHL42610637.jpg The field treatment of tobacco root-rot / 42610637 135613 67859 Table of Contents no 7 http //www biodiversitylibrary org/page/42610637 10 5962/bhl title 67859 Briggs Lyman J ; United States The contributing institution believes that this item is not in copyright<br> Biodiversity Heritage Library Check categories 2015 October 28 PD-old-70-1923 The field treatment of tobacco root-rot Images uploaded by Fæ Files from the Biodiversity Heritage Library |