106 
Improvement  of  Land  by  Warping. 
Percentage  of  ash  from  the  fresh  grain 
„ „ „ dried  grain 
„ „ nitrogen  in  the  dried  1 
beans  • . . . J 
a. 
0.  . 
7- 
5. 
3-298 
undetermined 
do. 
do. 
4-301 
4-000 
3-900 
do. 
4-612 
undetermined 
do. 
do. 
a.  Labelled  “These  beans  were  grown  on  warped  land,  being 
the  first  crop  after  warping  ; produce  5 qrs.  (40  bshls.)  per  acre. 
Previous  to  warping,  this  land  was  quite  unproductive.” 
/3.  Analysis,  by  Bichon,  of  the  inorganic  constituents  of  a 
sample  of  similar  beans,  from  Holland. 
y.  By  Boussingault,  from  Alsace. 
S'.  By  Buchner,  from  Giessen. 
II. — Wheat  ( Triticum  hybernum). 
a. 
0. 
7- 
i. 
£. 
Sulphuric  acid  • . 
0-160 
0-092 
0-101 
traces. 
.. 
Phosphoric  acid  . . 
48-719 
47-547 
46-172 
50-018 
48-252 
Potash  ..... 
20-019 
29-506 
31-914 
35-405 
33-090 
Soda 
14-965 
10-611 
8-909 
3-130 
2-941 
Chloride  of  sodium  . 
1-667 
0-540 
0-313 
traces. 
# , 
Chloride  of  potassium  . 
. . 
• . 
. « 
Lime 
1-360 
0-993 
0-897 
2-200 
5-616 
Magnesia  .... 
12-919 
10-600 
11-602 
9-097 
10-101 
Alumina  .... 
traces. 
. . 
. , 
. , 
. . 
Oxide  of  iron  . 
traces. 
. , 
, , 
, . 
Oxide  of  manganese  . 
. . 
• . 
. • 
. • 
Silicic  acid  .... 
0-191 
0-111 
0-092 
traces. 
traces. 
100-000 
100-000 
100-000 
99-850 
100-000 
Percentage  of  ash  from  the  "l 
fresh  grain  . . . . J 
Percentage  of  ash  from  the  \ 
dried  grain  . . . . J 
Percentage  of  nitrogen  ini 
the  dried  grain  . . . j 
1-864 
not  estimated 
1-909 
not  estimated 
1*868 
2-298 
2-316 
2-292 
do. 
2-461 
2-611 
not  estd- 
not  estd- 
not  estd- 
2-397 
a..  This  sample  was  labelled  “ Wheat  grown  in  succession  after 
beans,  being  the  second  crop  after  warping ; produce  4 qrs. 
(32  bshls.)  per  acre.” 
j3.  Marked  “This  wheat  was  grown  the  fifth  crop  after  warp- 
ing ; two  of  which  were  oats,  and  three  wheat ; produce  44  qrs. 
(36  bshls.)  per  acre.” 
paration  of  the  ashes  of  the  various  crops,  I in  every  case  adopted  the  precautions  men- 
tioned by  M.  Rose  (Phil.  Mag.,  vol.  30,  No.  202,  p.  369)  for  the  purpose  of  avoiding 
any  loss  that  might  result  from  the  volatilization  | of  the  alkaline  chlorides.  I did  not, 
however,  pursue  the  same  method  of  analysis  as  the  one  he  recommends. 
