Primera Publicación - 1820
213 exercises and 61 etudes in 3 books:
Book 1: 213 Exercices préparatifs (Preparatory Exercises) and 20 Etudes
Book 2: 29 Etudes
Book 3: 12 Etudes
https://imslp.org/wiki/Etudes%2C_Op.16_(Schmitt%2C_Aloys)
https://www.youtube.com/playlist Improve Technique de Piano Nights
https://musescore.com/user/69763429/scores/21900835