Harpers Handbooks 
Edited By 
W. C. O'Kane 
Professor of Economic Entomology at New Hampshire 
College of Agriculture 
Pov.try 
By A. W. Richardson, Professor of Poultry 
Husbandry, New Hampshire College of Agri- 
culture 
Home ConvENIENCES 
By F. W. Ives, Professor of Agricultural En- 
gineering, Ohio State University 
Sorts anp Fertiiizers (In Preparation) 
By Dr. Sidney B. Haskell, of the Massachusetts 
Experiment Station 
VEGETABLE Growine (In Preparation) 
By R. L. Watts, Director of the Experiment 
Station, State College, Pennsylvania 
Harper & Brothers, Publishers 
EstTaBLIsHED 1817 
