Enseignement Complet du Basson, V2 - BSN

Enseignement Complet du Basson, Volume 2 
for bassoon
by Fernand Oubradous (1903-1986) - French bassoonist, composer, and conductor

The second volume in Obradous' masterful bassoon method contains exercises in all Major and minor keys with four or more flats and sharps.
Volume 1 is available HERE. 
Volume 3 is available HERE.