HUCKLIMCS OF Lot B HWiE WEEKS OLD . - 



.Average wt. ^z pounds . Vegetable food only for fart 

 op THE TIME . Half or the Number died before other food was 



SUPPLIED 



Ducklings of Loj A - Nine weeks old . 

 Average Wt- A-.Z T'ounds . T^^ ration coMtained .amimal food 

 No Loss . 



Plate I. 



