Einleitung in die Theorie der linearen Differential-Gleichungen mit einer unabhängigen Variablen,

Available on demand as hard copy or computer file from Cornell University Library.

A treatise on infinitesimal calculus, containing differential and integral calculus, calculus of variations, applications to algebra and geometry, and analytical mechanics.

Vol. 3 and 4 form the author's Treatise on analytical mechanics.