STATISTICAL METHODS 



WITH SPECIAL REFERENCE TO 



BIOLOGICAL VARIATION. 



BY 



C. B. DAVENPORT, PH.D., 



Instructor in Zoology at Harvard University. 







FIRST EDITION. 



FIRST THOUSAND. 



NEW YORK: 



JOHN WILEY & SONS. 

 LONDON: CHAPMAN & HALL, LIMITED. 



1899. 



