ACQUIRED AND ABNORMAL CHARACTERS. 61 



sists, and, when the animal dies, or is sacrificed, it is 

 seen that this eyeball is smaller than its fellow. 



" If, now, such an animal were allowed to breed 

 with another, whether operated upon in the same 

 manner or not, it would be seen that young which are 

 born apparently perfectly healthy present, a few days 

 after birth, all the phenomena observed in their 

 changed parent or parents. They have the same 

 smaller eyes, but on both sides, the same ear thick- 

 ened and enlarged, etc. 



" The only phenomena which they do not show are 

 those which have been transient the increased heat 

 and the increased sensation which depended upon the 

 increased amount of blood present, etc. Those young 

 can be made to breed in-and-in for several genera- 

 tions. I have watched them for five generations, and 

 always the same characteristics will be discovered in 

 the young." 



" If, now, an examination is made of the parent, 

 the first one, it will be seen that the nerve that had 

 been sectioned, or its ganglion which had been extir- 

 pated, is not regenerated ; while, if an autopsy is made 

 of one of the offspring of any of the subsequent gen- 

 erations, it is seen that they all possess the nerve and 

 the ganglion intact. The acutest or most minute mi- 

 croscopic examinations do not discover any difference 

 between their structure and those of other animals of 

 the same family and species." * 



In these cases the permanent modifications of the 

 eye and face, resulting from the injury to the nervous 

 system, are entailed upon the offspring, while the 



1 Popular Science Monthly, July, 1877, pp. 333, 334. 



