Before revision: The participants were, among others: Gustaf Einar Du Rietz, Sweden John William Harshberger, U.S.A. Jens Holmboe, Norway Huguet del Villar, Spain Kaarlo Linkola, Finland Hugo Osvald, Sweden Ove Paulsen, Denmark Robert Lloyd Praeger, IrelandEdward Salisbury, England Salisbury, E.J.
After revision: The participants were, among others: Gustaf Einar Du Rietz, Sweden John William Harshberger, U.S.A. Jens Holmboe, Norway Huguet del Villar, Spain Kaarlo Linkola, Finland Hugo Osvald, Sweden Ove Paulsen, Denmark Robert Lloyd Praeger, IrelandConstantin von Regel, LithuaniaEdward Salisbury, England Salisbury, E.J.