— 97 — 



This comparison shows the importance of numbers in eliminat- 

 ing individual peculiarities. While each lot as a whole produced 

 almost the same amount of butter fat, in the separate members of 

 each lot there were very considerable differences. 



THE EFFECT ON THE LIVE WEIGHT. 



The cows were at pasture both night and day. They were 

 brought up about half-past four o'clock in the morning to be 

 milked, and the grain fed lot then received their morning ration. 

 On Thursday morning of each week the cows in both lots were 

 weighed as soon as they were milked, and after those in Lot II 

 had eaten their grain. Below is given the result of these weigh- 

 ings for each cow and the averages for each lot : 



TABLE IV. 



Lot I. 

 Pasture. 



No. i. No. 2. No. 3. . 



Glista Cora. shad " a ge. 

 ow. & 



Wt. Lbs. Wt. Lbs. Wt. Lbs. Wt. Lbs. 



May 29 



June 5 



June 13 



June 19 



June 26 



July 3 



July 10 



July 17 



July 24 



July 31 



August 7 . . . 

 August 14 . . . 

 August 2 [ . . . 

 August 28 . . . 

 September 4 . . 

 September 11 . . 

 September iS . . 

 September 25 . . 



Gain + or loss — 



1050 

 1010 



975 

 1050 



1030 



1052 



1054 

 1064 



107 1 : 



1072 



1024 



1036 



102 1 



1010 



1000 



Lot II. 

 Pasture and Grain. 



No. 1. 

 Jaue. 



No 



Gem. 



2. No. 3. 

 Phan- 

 tom. 



Aver- 

 age. 



Wt. Lbs. Wt. Lbs. Wt. Lbs. Wt. Lbs, 



962 

 963 



IO25 

 IO3O 

 IO40 

 IO06 

 I040 

 IO32 



100S 

 1018 1 



1035! 

 102 1 



99 1 

 988 



979 



988 



985; 



919 



932 



375 

 890 



905 



93° 



94o 



965 

 95o 



954 



955 

 1009 



968 



955 

 962 



975 

 991 



S82 

 942 



983 



977 



973 



995 



1003 



1016 

 1004 

 10x2 

 1020 

 1034 



994 

 993 

 987 

 991 

 992 



92X 

 946 



1 130 

 1 130 



1 1 90 



ii75 

 1205 

 1226 

 1 190 

 12 13 

 1208 

 1211 

 1 1 92 

 1185 

 1 149 

 1 160 

 1200 



1227 

 1 163 



865 



855 

 900 



890 

 S94 

 916 

 902 

 876 

 920 

 904 

 882 

 890 



875 

 879 



872 



831 



855 



615 

 740 



755 

 774 

 785 

 782 

 814 

 818 

 818 

 822 



815 

 850 

 823 

 840 

 S20 



786 

 823 



870 

 908 



948 

 946 

 961 



975 

 969 



969 



1015 



979 



9^3 



975 



949 

 960 



964 



948 

 947 



— s 7 -93 +67 -37 +33 -to +208 +77 



The "thin cows," No. 3 in each lot, were the ones that made 

 the largest gains, and the one in Lot II that had grain, gained 

 much more than the one in Lot I that had none. Aside from 

 these two cows there was very little variation in the weights of 

 the two lots, what variation there was being in favor of the grain 



