Allgemeine lehrsatze in Beziehung auf die im verkehrten verhaltnisse des quadrats der entfernung wirkenden anziehungs- und abstossungs-krafte. Herausgegeben von A. Wangerin.

Leipzig:: Wilhelm Engelmann, 1889., 1889. Series: Ostwald's Klassiker der Exakten Wissenschaften, Nr. 2. Small 8vo. (187 x 118 mm) 60 pp. Original printed stiff paper boards; covers lightly soiled. Ownership signature on cover and title-page, bookplate of Andras Gedeon. Very good. This work deals with the general theorems in relationship to the square of the distance of magnetic attractive and repulsive forces. Wangerin edited and published a series of textbooks on various subjects, from different authors, around the turn of the twentieth century. (Inventory (truncated) #: S10004)