Journal article reprint from: Mycologia, v.45:no.3 (1953:May/June).
Journal article reprint from: Plant Disease Reporter, v.37:no.8 (1953:Aug.15).
Journal article reprint from: Transactions of the New York Academy of Sciences, Ser.II:v.17:no.7 (1955:May).
Journal article reprint from: West Virginia Academy of Science. Proceedings, v.27 (1955).