Prendergast and his Mastery System
Hebrew Mastery
French Mastery
Latin Mastery
German Mastery
Japanese Mastery
Coignou - French for young pupils on Prendergast's System. (Who died shortly after publishing)
Richard Rosenthal Meisterschaft System (Who also dies young)
The Berlitz System was developed from Rosenthal's Method,
French Rosenthal Method
Italian Rosenthal Method
La Lengua Englesa Rosenthal Method
