MODERN VIEWS ON EVOLUTION 179 



and what terminate with the individual without affecting 

 the race. Perhaps the following remark,' the author 

 goes on to say, ' may afford the solution of this inquiry.' 



I must now quote without any omission the suc- 

 ceeding two paragraphs in which the two classes of 

 characters inherent and acquired are defined, as fully 

 and clearly as they have ever been, and where the opinion 

 is strongly expressed that the former are transmissible, 

 the latter non-transmissible by heredity : 



' It appears to be a general fact, that all connate 

 varieties of structure, or peculiarities which are con- 

 genital, or which form a part of the natural constitution 

 impressed on an individual from his birth, or rather from 

 the commencement of his organization, whether they 

 happen to descend to him from a long inheritance, or 

 to spring up for the first time in his own person for 

 this is perhaps altogether indifferent are apt to re-appear 

 in his offspring. It may be said in other words, that 

 the organization of the offspring is always modelled 

 according to the type of the original structure of the 

 parent. 



' On the other hand, changes produced by external 

 causes in the appearance or constitution of the individual 

 are temporary, and, in general, acquired characters are 

 transient ; they terminate with the individual, and have 

 no influence on the progeny.' 



At this point the author adds a most interesting foot- 

 note, in which he tells us (p. 537) that 'this distinction, 

 which has not been pointed out by any former writer on 

 physiological subjects, was first suggested to me in con- 

 versation many years ago by Mr. Benjamin Grainger, 

 of Derby'. It would be of high interest to ascertain 

 something more about Mr. Grainger and to find out 

 whether he ever published on his own account. It is 

 however probable, from the other pregnant ideas con- 

 tained in Dr. Prichard's work, that the clear expression, 

 apt illustration, and admirable discussion of these prin- 

 ciples are entirely original. 



He then proceeds to illustrate the first proposition 

 ' that all original or connate peculiarities of body are 



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