5. HEREDITY OF HAIR-LENGTH IN GUINEA-PIGS 



AND ITS BEARING ON THE THEORY 



OF PURE GAMETES 



\V. E. CASTLE AND ALEXANDER FORBES 



Papers of the Station for Experimental Evolution at Cold Spring Harbor, 



New York, No. 5 



Contributions from the Zoological Laboratory of the Museum of Comparative 

 Zoology at Harvard College. E. L. Mark, Director. No. 175 



