164 MAINE AGRICUI^TURAL E^XPElRIMENT STATION. I909. 



Poultry Experiments. 



W. Va. Agr. Expt. Stat. Bulletin 88, pp. 147-162. 



Contains detailed data on the influence of (a) mash as 

 compared with whole grain, (b) heavy feeding as com- 

 pared with light feeding, and (c) animal foods on the fer- 

 tility and hatching quality of eggs. 



(Symposium). 1902. 

 Age and Fertility. 

 Farm Poultry. Vol. 13, pp. 194, 215 and 240. 



Subtitle — "Are well matured cockerels more desirable 

 than vigorous cock birds." 



Wellcome, F. O. 1902. 



Heavy Laying and Fertility. 



Farm Poultry, Vol. 13, No. 17, p. 352. 



Rather general discussion. No definite figures but 

 studied the fertilitv of individual birds. 



