Characters, Hereditary and Acquired. 105 



in which that state of the eyelids had been caused either by 

 section of the cervical sympathetic nerve, or the removal of the 

 superior cervical ganglion. 



5th. Exophthalmia in animals born of parents in which an 

 injury to the restiform body had produced that protrusion of the 

 eyeball. This interesting fact I have witnessed a good many 

 times, and seen the transmission of the morbid state of the 

 eye continue through four generations. In these animals, 

 modified by heredity, the two eyes generally protruded, although 

 in the parents usually only one showed exophthalmia, the lesion 

 having been made in most cases only on one of the corpora 

 restiformia. 



6th. Haematoma and dry gangrene of the ears in animals 

 born of parents in which these ear-alterations had been caused 

 by an injury to the restiform body near the nib of the calamus. 



7th. Absence of two toes out of the three of the hind leg, and 

 sometimes of the three, in animals whose parents had eaten up 

 their hind-leg toes which had become anaesthetic from a section 

 of the sciatic nerve alone, or of that nerve and also of the crural. 

 Sometimes, instead of complete absence of the toes, only a part 

 of one or two or three was missing in the young, although in the 

 parent not onl^ the toes but the whole foot were absent (partly 

 eaten off, partly destroyed by inflammation, ulceration, or 

 gangrene.) 



8th. Appearance of various morbid states of the skin and 

 hair of the neck and face in animals born of parents having had 

 similar alterations in the same parts, as effects of an injury to 

 the sciatic nerve. 



These results * have been independently vouched 

 for by two of Brown-S^quard's former assistants — 

 Dr. Dupuy, and the late Professor Westphal. 

 Moreover, his results with regard to epilepsy have 

 been corroborated also by Obersteiner ^. I may 



* For Professor Weismann's statement of and discussion of these 

 results see Essays, vol. i. p. 313. 

 " Oesttrreichische medicinische Jahrbiicher, 1875, 179. 



