Short mention. It is a very important book in the history of (modern) linguistics. Its basic ideas and method follow those of the pedagogical Reform Movement of the the nineteenth century (The Quousque Tandem Movement, cf. Wilhelm Viëtor 1882, a pedagogical movement that is based on the ideas of Philanthropinism (J. Basedow) against the neohumanistic ideas of Wilhelm von Humboldt and others), and Wiwel anticipates by more than a decade what Ferdinand de Saussure's posthumous Cours de linguistique générale (1914+) (or the so-called Geneva School) made popular. The book is a synchronic description of Danish and as such it highlights the fact that synchronic language descriptions (as seen in e.g. modern grammar books) are only for pedagogical use with no scientific pretensions or claims (cf. Hermann Paul).