Nuovo strumento per lo studio dei fenomeni microsismici…

Florence, Tip. dell’Arte della Stampa, 1879 243x160 mm. 7 pp. Original printed wrappers, slightly soiled. A very good copy. On the upper margin of the first page ‘omaggio dell’autore’. On the upper cover the inked number ‘269’. The first presentation of the ‘ascoltatore endogeno’, the seismic instrument projected by the engineer Mugna, director of the Observatory at Forlì. Offprint from: Rivista Scientifico-Industriale, x (1879).
€ 55