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BULLETIN 646, U. S. DEPARTMENT OF AGRICULTURE. 
References.— Farmers' Bulletins 874, 272*, 331*, 41 1,566, 599*. Write 
to the State agricultural college for publications relating to the subject. 
Fig. 10.— Grazing rye. 
Practical exercises. — (1) Students carrying on home projects with 
pigs should provide pasturage and supplementary grazing. At 
least 1 acre of a good permanent pasture should be provided for the 
Fig. 11.— Grazing rape. 
brood sow and her litter of pigs. Seasonal supplementary crops 
should also be grown. At least three-tenths of an acre of each crop 
should be provided for each mature hog. 
* May be obtained only from the Superintendent of Documents, Government Printing Office, Wash- 
ington, D. C. 
