From the foreword:

These dailies have been divided into Six Parts so that they are usable logically by the young brass player as well as by the advanced student or professional. Books may be used individually or in an ensemble of all brass instruments.

Part 1: divided into three groups, A, B, and C, presents a series of routines in the range of a Major 10th. This makes it possible for a brass student of perhaps six months’ playing experience to use the exercises for embouchure building and flexibility…

Part 2: also divided into A, B, and C, extends the range to a 13th and starts a gradual extension of range which moved progressively through parts 4, 5, and 6.

Take a look at some of the sample pages to the left and then click above for an immediate PDF download of the entire book.