his next objective was to reunite and digest in one body the surgical doctrines which desault had published in various periodical works. of these he composed, "œuvres chirurgicales de desault, ou tableau de sa doctrine, et de sa pratique dens le traitement des maladies externes" (1798–1799), a work in which, although he professes only to set forth the ideas of another, he develops them with the clearness of one who is a master of the subject. in 1797, he began a course of anatomical demonstrations, and his success encouraged him to extend the plan of his lectures, and boldly to announce a course of operative surgery.