E. G. HASTINGS
Reading edition
Professor of Agricultural Bacteriology University of Wisconsin
TENTH EDITION
MADISON, WISCONSIN H. L. RUSSELL 1914
Copyright 1914 BY H. L. RUSSELL and E. G. HASTINGS
Reading edition
Professor of Agricultural Bacteriology University of Wisconsin
TENTH EDITION
MADISON, WISCONSIN H. L. RUSSELL 1914
Copyright 1914 BY H. L. RUSSELL and E. G. HASTINGS