101 
Improvement  of  Land  by  Warping. 
II. — This  specimen  was  labelled  “ Water  taken  from  the  warping 
drain  at  the  ebb  of  the  tide,  whilst  flowing  off  the  land.”  Specific 
gravity  of  the  filtered  water  at  59J°  Fahren.  was  1 ‘00034. 
Composition  of  the  water  per  gallon  in  its  original  state 
l Chloride  of  calcium  1 
0-499 
Chloride  of  magnesium  I 
Chloride  of  sodium 
4-002 
Soluble 
Chloride  of  potassium 
0-107 
salts : — < 
Nitrates  of  magnesia  or  lime 
a little 
8-903 
Crenate  and  apocrenate  of  magnesia  or  lime  . 
2-001 
Organic  extractive  matters 
0-261 
Sulphate  of  magnesia 
0-712 
V Sulphate  of  soda 
1-321 
Carbonate  of  lime  . 
7-961 
Carbonate  of  magnesia 
. 
1-550 
Insoluble 
Sulphate  of  lime 
0-240 
salts: — 
Peroxide  of  iron*  and  alumina*  . 
2-990 
15-358 
Perphosphate  of  iron* 
. . minute  traces 
Organic  matters 
0-411 
^ Silicic  acid,*  sand,*  &c.  . 
2-206 
Insoluble  warp,  separable  by  filter,  23-720. 
24- 261 
B.  Analysis  of  the  Warp  itself 
I. — Specimen  separated  by  filtration  from  the  first  sample  of  water. 
Composition : — 
Organic  matters 
Carbonate  of  lime 
Carbonate  of  magnesia 
Potash  and  soda,  existing  in  combination  with 
silicic  acid 
Lime 
Magnesia  . 
Peroxide  of  iron 
Oxide  of  manganese 
Alumina  . . . . 
Perphosphate  of  iron 
Silicic  acid,  sand,  and  undecomposed  silicates  . 
Sulphate  of  lime 
Quantity 
per  Gallon. 
16-344 
22-813 
3-547 
0-199 
2-111 
6-640 
10-419 
traces. 
10-487 
0-215 
160-605 
evident  traces. 
Per  Cent. 
7-003 
9-775 
1- 520 
0-085 
0-905 
2- 684 
4-465 
traces. 
4-491 
0-092 
68-778 
evident  traces. 
233-380  99-801 
The  warp  from  the  second  specimen  of  water  was  not  sub- 
jected to  analysis ; it  was,  however,  most  probably,  very  similar 
in  character  to  the  preceding. 
II. — Labelled  “ Specimen  of  warp  from  the  Grimsby  Dock,  near 
the  mouth  of  the  River  Humber.” 
The  vessel  in  which  it  was  contained  being  covered  over 
carefully  with  bladder,  this  warp  must  have  been  in  exactly 
the  same  state  as  when  first  deposited. 
Specific  gravity  in  its  normal  state  at  60°  Fahren. 
Specific  gravity  of  anhydrous  warp,  as  determined  by) 
means  of  oil  of  turpentine  . . . J 
1- 5511 
2- 3962 
