494 



Journal of Agricultural Research 



Vol. IV, No. 6 



Table XIII(B). — Percentages of offspring in states I, 2, and j to correspond to states i, 

 2, and J of the paternal grandsires 



Tables XIV (A) and XIV(B) represent the result of pooling the data 

 on parents and offspring included in Tables 11(A), VII (A), VIII (A), and 

 IX(A). 



Table XIV(A). — Correlation between offspring and parents, obtained by combining 

 into one table the data of Tables 11(A), VI 1(A), VIII(A), and IX(A) 



r=o.o597 ±0.0036. 

 Means of arrays : 



For parents i. 4361 ±0. 0020. 



For offspring i. 4174^0. 0020. 



Table XIV(B). — Percentages of offspring in states l, 2, and j to correspond to states 



I, 2, and J of the parents 



It may be noted that the percentage of recorded twins produced by 

 twin parents is larger than the percentage of recorded twins produced by 

 single parents. The correlation coefficient between sizes of litters in 

 which parents and offspring are bom is given by 



r == 0.0597 ± 0.0036, 



