Utilisation of Toum Scioage. 
75 
« Taule IV.— Showing the Kesults of the Experimcuts with Oxcu when ltd 
on Green Grass alone. 
Season, 1861. 
UnsGwaged 
Grass. 
Scwaged Grass. 
Plot 1. 
•riot 2. 
Plot 3. 
Plot 4. 
Tons of sewage to be applied per acre'i 
Tons of sewage required to end of^ 
Tons of sewage actually applied tol 
3000 
1721* 
1872* 
6000 
3962 
4423 
9000 
5942 
6153 
Grass consumed per head daily lbs. 
89-8 
105-2 
Weeks the produce of each acre would 1 
Increase in live-weight that the pro-'l 
duce of each acre would yield lbs./ 
Value of increase in live-weight from) 
Value of increase in live-weight from 1 
the increased produce of 1000 tons> 
33-1 
87-9 
£. s. d, 
1 9 4 
45-1 
134-4 
£. s. d. 
2 4 10 
0 8 3 
82-3 
245-0 
£. s. d. 
4 18 
0 11 10 
99-9 
297*4 
£. s. d. 
4 19 2 
0 11 4 
of any one was 103 lbs. in the 16 weeks, or at the rate of rather 
less than ^\ lbs. per week. Taking the average of the two and 
of the eight oxen respectively, those upon unsewaged grass gave 
scarcely 1\ lbs., and those upon sewaged grass scarcely 2| lbs., 
increase per 1000 lbs. live-weight per week ; whereas, feeding 
on good fattening food, such oxen should give 9 to 10 lbs. in- 
crease per 1000 lbs. live-weight per week. In fact, these very 
animals did give increase at this, and even a higher rate, during 
the subsequent four weeks, when they had, in addition to the 
grass, 4 lbs. of oilcake per head per day There can be 
no doubt, therefore, that with a proper allowance of oilcake, or 
some such food, a very different result would have been obtained 
throughout. It was, however, desirable that in the first experi- 
ments the grass should be tried alone. 
" III. Results of the JExperiments ivith Cows. 
" Twelve cows were selected by Mr. Campbell from his large 
herd, and were placed in a house by themselves. Two of these 
were to be fed upon unsewaged grass, and the remaining ten 
upon sewaged grass, mown as it was ready indiscriminately from 
the three acres receiving respectively different quantities of 
• " In this case to the end of September only ; see note to Table III." 
