Abstract
DURING the seven years that have elapsed since the publication, in 1904, of his previous book entitled “Flüssige Kristalle,” Prof. Lehmann has in no way abated his energy, and has poured out a constant stream of papers giving the results of, and the deductions from, further observations, so that another or at least a supplementary work is already called for. Prof. Lehmann decided to write an entirely new book, which, being complete in itself, would readily enable any reader interested in the subject to learn what has been done in it and what is the present situation. The subject is not easily understood, and most of the experiments upon which it is founded cannot be performed without special apparatus. It has so far received scanty attention in this country, and its extreme importance is perhaps not fully realised. Outside Germany Prof. Lehmann has given demonstrations before the Mineralogisch-Petrographische Gesell-schaft in Vienna, and the Société Frangaise de Phvsique in Paris; may we not hope that some society in this country will be sufficiently enterprising to induce Prof. Lehmann to give a similar demonstration in London? No one who has witnessed these beautiful phenomena can fail to agree in the main with Prof. Lehmann's conclusions; to see is to believe, and, as Prof. Lehmann says (p. 5), “jeder, welcher Gelegenheit hatte die Versuche zu sehen, sich davon überzeugte, die Erscheinungen konnten unmoglich anders gedeutet werden.”
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Liquid Crystals 1 . Nature 88, 314–315 (1912). https://doi.org/10.1038/088314a0
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DOI: https://doi.org/10.1038/088314a0