paperback. Illus. 7 pages (pp 728-734) IN: Annalen der Physik, 4th series, vol. 17, no. 4. 8vo, original printed wrappers. (front wrapper chipped). Leipzig, 1905. First Edition. Offered entire.
Lehmann, the great German physicist, was the discoverer of liquid crystals, a subject to which the present work is an early contribution. Other contributors to this volume include A. Winkelmann, John Koch, W. Matthies, G. Melander, R. Fuersteabau, and others.