262 Dv Morton ofi Hj/brid Animals and Plants. 



which the cells of P. lepadifera have dried, and hence a mis- 

 take was made by Ellis, who described the cells as ' reflexed,' 

 that is, with the mouth downwards, which must have arisen 

 from the position in which his specimen had been hung up 

 to dry, as the weight of the cells would make them fall. 



" I will not go into further remarks respecting the differ- 

 ent species, but have said thus much, because the Primnoas 

 are a rare form of coral, and there is an additional interest 

 in the Norway species occurring at a great depth, as is the 

 case with your new species of the genus.* Very truly yours, 



C. Stokes." 



— Sir James Clark Boss's Voyage to the Southern and Antarc- 

 tic Begions. vol. i., p. 334. 



Hyhridity in Animals and Plants, considered in reference to 

 the question of the Unity of the Human Species. By Samuel 

 George Morton, M.D., Author of " Crania Americana," 

 " Crania ^Egyptiaca," &c.t 



Part I. Mammalia. — Introductory Remarks. 



The facts connected with hybridity in the inferior classes 

 of animals, have an important bearing on one of the most 

 interesting questions in Ethnography ; and it is in reference 

 to this question, that we now propose to arrange and review 

 them. J 



It was taught by Buifon, John Hunter, and other natu- 

 ralists of the past century, and is yet assumed by some 

 learned men of the present day, that the hybrid ofifspring of 



* I leam from Professor Edward Forbes, that he has got from Captain Sul- 

 livan another new species of Primnoa from near Staten Land, in 278 fathoms. 

 1st August 1846. 



t Read before the Academy of Natural Sciences of Philadelphia, Nov. 4 

 and 11, 1846. 



X Dr James Cowles Prichard, the first Ethnogi*apher of this or any age, has, 

 with great care and candour, collected many of the following examples of hy- 

 bridity, although to my view, they conflict strongly with his main position. — • 

 See PiC-'Carchci' into the Physical IJinlorii of Mankind, vol. i. 



