U. 8. DEPARTMENT OF AGRICULTURE. 
ee ere eee 
\ 
b 1 Rag * Bn he 
2 .OO| 
\ 
Department Bulletins 
Nos. 751-775, 
en Oe OEE reas) TI Os erptys wit. Sk Eerhendp. cade oe 
WITH CONTENTS 
AND INDEX. 
RVs pte ne mn ca et 
Prepared in the Division of Publications. 
WASHINGTON: 
GOVERNMENT PRINTING OFFICE, 
1921. 
