THE BOG [NDUSTRY. 
185 
Second experiment : 
Third cross, Large Improved Yorkshire on Berkshire. 
Large Improved Yorkshire Poland China cross. 
Tamworth Poland China cross. 
Large Improved Yorkshire Poland China cross (Minnesota-bred dam). 
Large Improved Yorkshire-Berkshire cross. 
In the first experiment "The Tam worth-Poland China and Large 
Improved Yorkshire— Poland China crosses were obtained similar to 
those above described" and from a, pure Tamworth and pure Large 
Improved Yorkshire sire, respectively. The second cross, or grade, 
of Yorkshire on Berkshire was from a dam the progeny of a Large 
Improved Yorkshire sire and a dam essentially Berkshire, but not reg- 
istered. The third cross of Yorkshire on Berkshire was of breeding 
similar in kind, but once removed further from the original Berkshire 
dam." 
In the second experiment there were some slight changes; the pigs 
of one Yorkshire— Poland China lot were out of a dam reared in the 
corn belt, while those of the other were out of a Minnesota-bred dam. 
"In several instances, however, the blood lines were not only the 
same, but the animals in the experiment were from the same sire and 
dam, as were those of the previous year." The results follow: 
Feeding tests of crossbred irigs. 
Breeding. 
First experiment : 
Tamworth-Poland China 
Second cross, Yorkshire-Berk- 
shire 
Third cross, Yorkshire-Berk- 
shire 
Yorkshire-Poland China 
Second experiment: 
Third cross, Yorkshire-Berk- 
shire 
Yorkshire-Poland China. 
Tamworth-Poland China 
Yorkshire-Poland China (Min- 
nesota-bred dam) 
Yorkshire-Berkshire 
©.H 
is. it. 
© 
> 
Lbs. 
47 
56 
02 
>> 
05 
'C 
c 
a 
°d 
© 
a. 
© 
cS 
& 
a 
> 
E3 
< 
£ 
Lbs. 
118 
126 
181 
126 
104 
126 
128 
126 
12<j 
126 
166 
126 
147 
126 
158 
126 
152 
126 
Lbs. 
0.<>4 
1.02 
1.00 
1.32 
1.17 
1.25 
1.21 
Feed eaten. 
T3 

p. 
3 .a 
Til 
Grain. Milk 
Lbs. 
456 
1.04 499 
527 
564 
Green Pi 
■ feed. - 
8 
Lbs. 
83 
410 47 
483 44 
427 
577 
482 
Lbs. 
80 
108 
142 
145 
252 
252 
252 
252 
196 
Dolls. 
2.24 
2.1' 
2. 28 
2.16 
2. 25 
2.28 
2.16 
2.18 
2.43 
Dolls. 
1.61 
1.84 
1.46 
1.87 
2.98 
3.86 
3.64 
3.89 
3.38 
Among Shaw's conclusions are the following remarks : 
That the experiments do not sustain the view that the results will be less satis- 
factory from each succeeding cross of Yorkshire on Berkshire. 
That the cross of Large Improved Yorkshire and Tamworth breeds upon the 
a See experiments with crossbred swine, pp. 183, 184. 
