Some time ago a massive project was undertaken to publish books encompassing his method of instruction and his approach to Latin. The first book in the series came out some time ago.
The second book, I am informed, is being printed now by Catholic University Press.
Ossium Carnes Multae e Marci Tullii Ciceronis epistulis: The Bones’ Meats Abundant from the epistles of Marcus Tullius Cicero
The first book…
Ossa Latinitatis Sola ad Mentem Reginaldi Rationemque: The Mere Bones of Latin According to the Thought and System of Reginald by Reginaldus Thomas Foster
The whole project will include five books.
The one I am really longing for has his legendary Ludi Domestici.
I think there are some gaps in the collection. If you have ever been in Foster’s experiences and have old sheets, HERE.