338 Report on the Field and Feeding Experiments at JVohirn. 
The following plan shows at one view the course of cropping 
of the 16 acres under Rotation Experiments : — 
Rotation No. 1 
4 Acres. 
R..tation No. 2. 
4 Acres. 
Eolation No. 3. 
4 Acres. 
Rotation No. 4. 
4 A( res. 
1877 
1878 
1870 
1880 
1881 
Se((ls 
Wheat 
Roots 
Barley 
Tonts 
B;irley 
Wheat 
Barley with 7 cwt. 
Seeds 
Wheat 
Roots 
Barley 
rai)e-cuke per acre. 
Roots. 
Barley. 
Seeds. 
Wiieat. 
'Rotation iV'o. 1. — 1877, seeds; 1878, wheat; 1879, roots; 
1880, barley. 
The seeds were fed off in 1877 by 10 sheep kept on each of 
the four acres of this Rotation during 15 weeks. On the 1st 
acre (plot 1) the sheep consumed as additional food 728 lbs. of 
decorticated cotton-cake. 
On the 2nd acre (plot 2) they consumed in 15 weeks 728 lbs. 
of maize meal. 
On the 3rd and 4th acres (plots 3 and 4) no additional food 
was given ; but on plot 3 the wheat was manured with artificial 
manures containing as much nitrogen and other fertilizing con- 
stituents as the manure from 728 lbs. of decorticated cotton- 
cake, namely, 275 lbs. of nitrate of soda, 73 lbs. of bone-ash 
made into superphosphate, 45^ lbs. of sulphate of potash, and 
47^ lbs. of sulphate of magnesia. And, lastly, on the 4th acre 
(plot 4) the wheat was manured with artificial manures con- 
taining as much nitrogen and other fertilizing matters as the 
manure from 728 lbs. of maize-meal, namely, 58;^ lbs. of nitrate 
of soda, 11| lbs. of bone-ash made into superphosphate, 5 lbs. of 
sulphate of potash, and 8 lbs of sulphate of magnesia. 
The wheat, Browick Wheat, a variety usually grown in the 
Woburn district, was sown on the 6th of November, 1877, 
and the artificial manures were top-dressed on the 9th of 
March, 1878. 
The harvest was begun on the 11th of August; the wheat 
was carted and stacked on the 20th of August, and threshed 
out on the 15 th of October. 
The Table on the opposite page shows the produce obtained. 
The wheat on all the four rotation acres, it will be seen, pro- 
duced a full crop. VVitli the exception of plot 3, which was 
top-dressed with nitrate of soda(275 lbs.) and artificial manures, 
which together contained an equivalent quantity of nitrogen 
and other fertilizing matters to the dung resulting from the con- 
sumption of 728 lbs. of decorticated cotton-cake, the produce in 
corn of the three remaining acres varied but little. The maize- 
plot (plot 2) yielded a few bushels more corn and rather less 
