APPENDIX. 167 



neck than those of most others. The bars across the legs, 

 both of the hybrid and of the colt and filly, are more 

 strongly defined and darker than those on the legs of the 

 quagga, which are very slightly marked ; and though the 

 hybrid has several quagga marks, which the colt and filly 

 have not, yet the most striking, namely, the stripes on the 

 fore-hand, are fewer and less apparent than those on the 

 colt and filly. These circumstances may appear singular; 

 but I think you will agree with me that they are trifles com- 

 pared with the extraordinary fact of so many striking- 

 features, which do not belong to the dam, being in two 

 successive instances communicated through her to the 

 progeny, not only of another sire, who also has them 

 not, but of a sire belonging probably to another species, 

 for such we have very strong reason for supposing the 

 quagga to be, 



" I am, my dear Sir, 



" Your faithful humble servant, 



" Morton. 

 "Dr. W. H. Wollaston. 



"P.S. — I have requested Sir Gore Ousele}" to send me 

 some specimens of hair from the manes of the sire, dam, 

 colt, and filly ; and I shall write to Scotland for specimens 

 from those of the quagga and of the hybrid. 



" I am not apt to build hypotheses in a hurry, and have 

 no predilection either for or against the old doctrine of 

 impressions produced by the imagination ; but I can hardly 

 suppose that the imagination could pass by the white tufts 

 on the quagga's mane and attach itself to the coarseness of 

 its hair. 



•' Wimpole Street, Ausrnst 12tli, 1S20." 



Note by Dr. Wollaston. 



" By the kindness of Sir Gore Ouseley, I had an oppor- 

 tunity of seeing the mare, the Ai-abiau horse, the filly, and 



