30 INHERITANCE, VARIATION AND SELECTION. 



tional capacity, does not necessarily involve noticeable differences 

 in the organs to which these functions belong. For example, in 

 the case of the Frenchman who possessed the power of moving his 

 scalp, we are not informed that there was any unusual develop- 

 ment of this part of the anatomy, while, as a matter of fact, if 

 there had been a development of the scalp muscle?, at all propor- 

 tional to the power of moving them, such an amazing development 

 would certainly have been commented upon. 



TELEGONY. 



While the persistency of the gray color in the descendants of 

 the thoroughbred mare Basto illustrates how a single infusion of 

 blood will continue for a long time, it does not illustrate to the 

 fullest extent how small an infusion may cause an appreciable effect. 

 For some reason, not yet fully understood, a mother is more or 

 less affected by the father of her offspring, and often to an extent 

 that will mark her for life and all the future offspring she may 

 have. A case often quoted, and sometimes distorted, is that of a 

 chestnut mare that belonged to the Earl of Morton. In 1815 this 

 mare was covered by a quagga, and the hybrid produced resem- 

 bled the sire in color and in many peculiarities of form. In 1817, 

 1818 and 1821 the same mare was covered by a very fine black 

 Arabian horse, -and produced successively three foals. Although 

 she had not seen the quagga since 1816 each of the three foals 

 bore his curious and unequivocal markings. 13 



"A colt, the property of the Earl of Suffield, got by Laurel, 

 so resembled another horse (Camel) that it was whispered, nay, 

 even asserted, at Newmarket, that he must have been got 

 by Camel. It was ascertained, however, that the only relation 



(n) First published in the "Philosophical Transactions," 1821, p. 20. 



