[17] Op. cit., p. 60.
[18] This opinion is somewhat stronger than that expressed in my article in the "System of Medicine." I can only say it is the result of much increased experience.
[19] Journal de la Physiologie, v.
[20] "Ernährungsstörungen der Augen bei Anæsthesie des Trigeminus." Mitgetheilt von Dr. v. Hippel in Konigsberg in Preussen. Archiv f. Ophthalm. Band. xiii.
[21] Zeitsch. f. rat. Med., 1867. There is corroborative evidence, from independent sources, of the truth of Meissner's views. His own observation only proved half the case; but he quotes an observation of Buttman's in which the exact converse of his own experience happened, the external fibres being affected without the inner band, and anæsthesia without trophic changes being the result. Moreover, Schiff (Gaz. hebdom., 1867) obtained experimental results (in operating on cats and rabbits) which coincide with Meissner's.
[22] London Hospital Reports, vol. iii., p. 305.
[23] Wegner, loc. cit.
[24] Archiv f. Ophthalm., xv., 1.
[25] "Deutsches Archiv f. klin. Med.," ii., 2, 1866. I am not aware whether Piotrowski has at all altered his opinions since the (subsequent) observations of Ludwig and Cyon upon the "depressor" nerve.
[26] "Functional Nervous Disorders." Churchill, 2d edit., 1870.