Improvement  of  Laud  by  Warping. 
107 
y.  Marked  “This  wheat  was  grown  upon  land  warped  six 
years  ago;  the  first  crop  was  oats,  then  three  crops  of  wheat  in 
succession ; produce  4 qrs.  (32  bshls.)  per  acre.” 
S.  This  specimen  was  grown  on  rich  arable  land  at  Hor field, 
near  Bristol ; produce  unknown. 
e.  Obtained  from  rich  clay  land  near  Pensford,  about  ten  miles 
from  Bristol.  This  is  generally  considered  to  be  one  of  the  best 
wheat-growing  districts  in  Somersetshire. 
III. — Oats  {Arena  sativa ). 
a. 
13. 
7* 
$. 
Sulphuric  acid 
1-024 
2-131 
1000 
0*130 
Phosphoric  acid 
17*643 
9-739 
14-900 
21-530 
Potash 
13*133 
9*771 
12-900 
13-970 
Soda 
7*154 
4*612 
1-500 
Chloride  of  sodium 
Chloride  of  potassium  .... 
2-010 
1*379 
0-500 
•• 
Lime 
4*  176 
6-818 
3-700 
4-220 
Magnesia 
9-321 
7-732 
7-700 
8-820 
Alumina 
• , 
0*066 
, , 
Oxide  of  iron 
traces. 
1*241 
1*300 
0-360 
Oxide  of  manganese 
Silicic  acid 
45-539 
56*511 
53-300 
49*440 
100-000 
100-000 
95-300 
99-970 
Percentage  of  ash  from  the  fresh  grain 
. 2-806 
2-791  not  determined  2 "75 
,i  „ !>  dried  grain 
, 3-954 
3*061 
4-000 
„ „ nitrogen  in  the  dried  1 
. 2*364 
1*691 
grain  . . . . J 
a.  This  specimen  was  labelled  “ These  oats  were  grown  on 
warped  land,  and  are  the  fourth  crop  in  succession  : i.  e.  first 
crop,  oats;  second  and  third,  wheat;  and  fourth,  oats;  produce 
8 qrs.  (64  bshls.)  per  aci’e.” 
/3.  Labelled  “ These  oats  were  grown  upon  natural  sandy  soil, 
which  has  never  been  warped  (C.  I .)  ; produce  £ qr.  (6  bshls.)  per 
acre.” 
y.  Analysis  of  the  inorganic  constituents  of  the  oat,  as  given 
by  Boussingault,  in  his  c Economie  Rurale.' 
$.  Analysis  of  the  same,  by  Way,  £ Royal  Agricultural  Journal,’ 
vol.  vii. 
