CONDUCTING BREEDING INVESTIGATIONS 



605 



FIG. 236. Summary egg sheet in use in experimental breeding investigations at the Wis- 

 consin Agricultural Experiment Station. (Devised by Leon J. Cole.) 



Report only one pair of twins on eaoh sheet. 

 BREED 



FIQ. 237. Printed form used in investigation of multiple births in cattle at the Wisconsin 

 Agricultural Experimental Station. (Devised by Leon J, Cole.) 



