Practical method for the bassoon, by Julius Weissenborn; augmented and adapted for the modern bassoon by W. F. Ambrosio; including comlete fingering chart and Weissenborn--Fifty advanced studies.
"Chromatic scale for the Heckel bassoon by Oscar Modess" and "Table of trill fingerings for the Heckel bassoon, by Oscar Modess," in pocket in back of book.