Lippincott's Farm Manuals 



EDITED BY K. C. DAVIS, Ph.D. (Cornell) 



PRODUCTIVE FEEDING 



OF 



FARM ANIMALS 



BY 



F. w! WOLL, Ph.D. 



PROFESSOR OF ANIMAL NUTRITION, UNIVERSITY OF CALIFORNIA-; FORMERLY PROFESSOR OF 



AGRICULTURAL CHEMISTRY, UNIVERSITY OF WISCONSIN, AND CHEMIST TO WISCONSIN 



AGRICULTURAL EXPERIMENT STATION; EX-PRESIDENT OF ASSOCIATION OF 



OFFICIAL AGRICULTURAL CHEMISTS OF NORTH AMERICA; MEMBER JURY 



OF AWARDS, PANAMA-PACIFIC INTERNATIONAL EXPOSITION. 



105 ILLUSTRATIONS IN THE TEXT 

 THIRD REVISED EDITION 



"If vain our toil, 

 We ought to blame the culture, not the sdill" 



Pope — Essay on Man 



PHILADELPHIA & LONDON 

 J. B. LIPPINCOTT COMPANY 



