344 Bepurt oil the Field and Feeding Experiments at Woburn. 
KoTATiON Clover Seeds, 1878, after Barley. 
Increase in 
Live-Weight. 
PlOTS. lbs. 
IFed-off by 10 sheep, with 672 lbs. of decorticated] 
cottoa-cake ; on the land 17 weeks; and 5 sheepi 447 
on the land 1 week and 2 days J 
IFed-off by 10 sheep, with 728 lbs. of maize-meal ; on] 
the land 17 weeks ; and 5 sheep on the land 1 weekt 4435 
and 2 days J 
{Fed-off by 10 sheep, without other food; on the land] 
17 weeks; and 5 sheep on the land 1 week andi 381 J 
2 days J 
!Fed oli' by 10 sheep, without other food ; on the land] 
17 weeks; and 5 sheep on the land 1 week and> 3254 
2 days .. .. j 
The average increase in live-weight obtained without pur- 
chased food was 353J lbs. Deducting this increase from that 
obtained by the consumption of 672 lbs. of decorticated cotton- 
cake, we obtain 93^ lbs. as due to the cotton-cake ; and making 
the same deduction in the case of the second acre, on which 
728 lbs. of maize-meal were consumed bj the sheep, the total 
increase due to the maize amounts to 90 lbs. Accordingly, 
6 cwts. of decorticated cotton-cake produced almost the same 
additional increase in live-weight as cwts. of maize-meal. 
The clover-plant stood very thick, and grew most luxuriantly, 
on the four acres, which, with the addition of 6 cwts. of decor- 
ticated cotton-cake and 6J cwts. of maize-meal, produced an 
increase of 1597| lbs. of live-weight, or 596 lbs, more than the 
seeds on Rotation No. 1 in 1877. 
Rotation No. 4. — Four acres. Mangolds 1878. 
Previous Cropping. — Seeds failed in 1874. Winter tares 
1874-5, fed off with 5^ cwts. cake per acre. Barley 1876 : pro- 
duce per acre — dressed corn, 37 bushels ; offal corn, 8 bushels; 
straw, 24 cwts. Barley 1877, with 7 cwts. rape-cake per acre: 
produce per acre — dressed corn, 43 bushels ; offal corn, 56 lbs. ; 
straw, 26 cwts. 
The mangolds were respectively manured as follows : otie acre 
with dung made from a given quantity of straw as litter ; and of 
mangolds and wheat-straw chaff as food, with 1000 lbs. of decor- 
ticated cotton-cake consumed in addition. The second acre with 
dung from the same amount of litter, and of mangolds and wheat- 
straw chaff as food, with the addition of 1000 lbs. of maize-nical. 
The third and fourth acres, each with dung from the same amount 
of litter, and of mangolds and wheat-straw chaff as food, without 
purchased food in addition ; but one of them received artificial 
manure, supplying two-thirds as much nitrogen, and as much of 
the other constituents, as were estimated to be contained in the 
