l6 MAINS AGRICULTURAL EXPERIMENT STATION. ig02. 



DATES OX WHICH EGGS WERE LAID. 



3J 7i 



£ o 



eg 

 C 

 3 

 >-5 



741.. 

 742.. 

 743-. 

 744.. 

 745.. 

 747.. 

 748.. 

 749.. 

 753.. 

 754.. 

 756.. 

 760.. 

 762.. 

 763.. 

 764.. 

 765.. 

 766.. 

 768.. 

 770.. 

 772.. 

 774.. 

 776.. 

 777.. 

 778.. 

 779.. 

 780.. 



R. 12... 



Inf. 

 12.. 

 Inf. 

 C'k. 

 12.. 

 Inf. 



ST. C'k. 



R. 



C'k.. 

 Inf.. 

 Inf.. 

 Inf.. 

 C'k.. 

 Inf.. 

 C'k.. 

 Inf.. 

 C'k.. 



R. Inf. 



X. 12... 



12... N. 

 IR. 



C'k.. 

 Inf.. 



20... 

 Inf.. 

 C'k.. 

 Inf.. 

 12.... 

 12.... 



Inf. 



N. Inf.., 



Inf. 

 20... 

 C'k. 



12... 

 Inf. 

 20... 



12.. 



20.. 

 12.. 



X. Inf. 



20... 

 C'k. 

 C'k. 



C'k. 

 C'k. 



R. 12... 



R. Inf.. 



R.' ' C'k. 



R. 20... 



R. 12... 



R. C'k. 



N. Inf.. 



R. C'k. 



R. 12... 



N. 12... 



X. C'k. 



X. C'k. 



R. 20... 

 R. Inf.. 



N. 20. 

 N. 12. 



X. C'k. 



R. 20... 

 X. Inf. 

 R. 20... 



X. Inf.. 



N. Inf.. 



X. C'k. 



N. C'k. 



R. Inf.. 



R. Inf. 



R. 20... 



N. C'k. 



N. C'k. 



X. Inf.. 



X. 12. 



X. C'k. 

 X. Inf.. 

 R. 12... 



R. C'k 



X. 12.. 



X. Inf 

 X.'"l2.. 



R. 20.. 

 R.' ' C'k 

 R.° ' Inf 



R. 12.. 

 R. C'k 



X. 20.. 



N. C'k 

 R. 12.. 

 R. 20.. 



R. 20.. 

 X. C'k 



R. Inf 

 R. 12.. 



X. 12.. 

 X." ' 20.! 

 R. 12.. 



R. C'k 



N. 12. 



R. Inf 

 N. 12.. 

 R. 12.. 



X. C'k 



X. 20. 



X. Inf 



N. C'k 



X. 12.. 



R. 12.. 



N. 12.. 



X. Inf 



X. 12.. 



12., 

 12., 



N. C'k 



R. 20. 



C'k 

 C'k 



C'k 

 12.. 

 12.. 



12.. 



X. 12.. 



R. Inf 



R. C'k 



R. 20.. 



R. Inf 



The letter R marks the eggs that rested and X indicates those that were not 

 rested. The other marks in the table are explained on page 13. 



SUMMARY OF RESULTS. 



Treatment of eggs. 



be 



be -w 



=> c 



<m o> >-.<,_, a 



° - 2~ ° o 



mil! 



CO 



*7 ~ .— ~ ^ 



OS O 



-l. 



be 



eg 



ffi »1oa 

 ; ».2 



3-2 



£.2° «Ss« 



Z .r. "Z 9". « C> T* 



Rested .... 



Xot rested. 



20 

 17 



13 



TIME REQUIRED TO ESTABLISH FERTILITY IN EGGS. 



The following experiment was undertaken to determine how 

 soon after mating eggs become sufficiently fertile to yield chicks. 

 For this purpose there were selected 20 Barred Plymouth Rock 

 hens one year old, that had been laying heavily during the five to 

 seven months preceding, but had not been in the company of male 

 birds since they were young chicks. Late on the evening of May 

 25 a cockerel 12 months old was placed in the pen with them and 



