252 ROMMEL AND PHILLIPS— INHERITANCE IN [October 19, 



TABLE V. — Correlation of Size of Litters of Five- Year-Old Sows to 



Size of Litters in which Dams were Farrowed. " American 



Poland China Record." — Litters of 1902, 



tS Size of Litters of Five- Year-Old Sows, 



I 2 3 4 5 6 7 8 9 10 II 12 13 14 IS 



fe 2 II 



^3 112 4 



^4 21232 I II 



t«5 13366422 27 



1 6 11148410687112 54 

 Q 7 I I 8 12 ID 13 II 6 I 3 66 

 ^8 2 3 3 II 14 10 4 3 3 53 

 '^9 2 2438 II 12 642 54 



^10 I 435433211 27 



.S II I 3 2 2 4 I 13 



t« 12 121 I 5 



13 



8 



;j 14 II 2 



M-. 15 O 



^ o 3 I 7 15 32 48 64 61 43 28 12 7 3 I 325 



N 



TABLE VL — Correlation of Size of Litters of Sows One to Five Years 



Old to Size of Litters in which Dams were Farrowed. " American 



Poland China Record." — Litters of 1902. 



^ Size of Litters of Sows One to Five Years Old. 



123456 7 8 9 10 II 12 13 14 15 16 17 



rt I ^ ^ ^ 



fc2" 3223323 I 19 



^3 5 3 4 10 6 9 13 16 6 II I 75 



% 4 I 6 10 27 37 36 30 32 13 7 3 2 I I 206 



^ 5 2 8 28 51 86 82 90 62 27 14 7 I I I 460 



£ 6 2 5 14 44 84 159 205 168 103 73 32 10 3 3 90s 



p 7 2 7 II 49 98 206 259 228 166 105 36 9 7 2 1185 



^ 8 2 8 20 54 122 166 242 223 169 94 41 18 9 2 2 I 1 173 



•^ 9 I 6 8 37 93 141 207 191 163 97 52 10 7 6 1019 



^ 10 2 I 8 21 40 88 105 121 82 51 31 8 3 3 I 565 



.S II 4 3 16 34 36 61 63 48 31 21 7 2 r 327 



crt 12 14 5 12 29 25 21 II 12 II 2 I 134 



1 13 32611595332 49 



3 14 I 3 7 3 4 3 I I 23 



^15 I I 



° 16 I . i 



.^ 17 I I 



^ 9 40 88 274 580 970 1246 I 165 863 519 249 77 39 18 6 i i 6145 



The calculation of the correlation between sizes of litters in two 

 consecutive generations in the female line gives the following 

 results : 



