372 
Oil the Use of the Water- jD rill. 
periments, only otnittino; to sow any rows without the artificial 
manure. These I have also tabulated : — 
T.U3I.F. ir. 
When 
Sown. 
Apr. 26 
Apr. 26 
Apt. 25 
Apr. 21 
Apr. 28 
What Drill 
used. 
Qiiactity and Description 
of Artificial Maniire 
used. 
IWaterdriui 
(Dry drill . 
Water drill 
Dry drill . 
( Water drill 
(Dry drill . 
f Water drill 
\ Dry drill . 
Water drill 
Dry drill . 
\i cwt. Lawes' super- '(^ 
phosphate of lime ) 
Ditto 
H cwt. Lawes' super-") 
phosphate of lime ) 
Ditto 
2 cnt. Lawes' super-) 
phosphate of lime } 
Ditto 
I* cwt. Lawes' super- ) 
phosphate of lime 5 
Ditto 
1 i cwt. Lawes' super- 1 
phosphate of lime f 
Ditto 
tost 
per Acre 
for Arti- 
ficial 
Manure 
Farm- 
yard 
Jlanure 
per Acre. 
d. 
11 
3 
13 loads 
11 
3 
13 loads 
11 
3 
13 loads 
a 
3 
13 toads 
15 
0 
13 toads 
15 
0 
13 loads 
n 
3 
13 loads 
11 
3 
13 loads 
a 
3 
10 loads 
11 
3 
10 loads 
■Wliin 
Weighed. 
. Oct. If.-^ 
Oct. IG; 
I Oct. 15| 
• Oct. ITs 
I Oct. 1t| 
I'roduc 
iwr Acre. 
tons. cwt. St. I Is 
IS 
2 
4 
II 
8 
10 
3 
10 
19 
2 
6 
12 
lo 
15 
0 
0 
19 
O 
6 
12 
12 
15 
5 
10 
27 
5 
5 
10 
;g 
10 
0 
0 
30 
0 
0 
u 
20 
13 
4 
s 
From the above Table it will be seen that the weight of roots 
per acre in Nos. 1, 2, and 3, from both drills, is consider- 
ably smaller than in Nos. 3 and 4. This is owing to the fact, 
that the former are all gravelly soils, and not exactly adapted 
to the growth of a heavy crop of mangolds, although they in- 
variably produce a superior quality, whilst the latter are cool- 
bottomed and deep-soiled lands, well suited for the successful 
cultivation of this crop. These gravelly soils, just referred to, 
are of a very different quality to those specially named in the 
former Table, Instead of a light dusty soil, liable to blow with 
high westerly gales, they consist of good rich loam resting 
upon gravel, which unfortunately rises too near the surface, 
and consequently reduces the crop. Many of the remarlis 
made with reference to Table No. 1 of a more general cha- 
racter are equally applicable to No. 2, and neeil not be re- 
peated. It may, howevei', be observed that throughout these 
experiments the quantity of artificial manure is slightly in- 
creased as compared with the preceding year, the minimuui 
being H- cwt. per acre, and the maximum 2 cwt. The results as 
to the produce are very similar, ranging from nearly G to over 10 
tons per acre in favour of the water-drill. It cannot, therefore, 
be matter of surprise that these experiments, so carefully made 
for two successive years, should lead me publicly to advo- 
cate the claims of the water-drill system. Tlieir success was 
so uniform and unvarying, and the results so eminently satis- 
