Arnold Näf studied Veterinary Medicine at the Tierarzneischule in Zürich from 1861 to 1864. During the lectures in clinical medicine he made several notes, which were published in the book: "Arnold Näf: Notes from the entire veterinary medicine 1864". In the present work the person of prosector Meyer together with his lectures about obstetrics, horse shoeing, specific pathology and therapy as well as prescription science are described in more detail. Hans Jakob Meyer was born in Schlieren, January 10, 1831 and died May 8, 1895. He was teaching Veterinary Medicine from 1855 to 1895 at the Tierarzneischule in Zürich. The therapy about glanders, mange and strangles in the horse was compared with the contemporary literature. Partial agreement with the application of substances used at that time has been found.