404 Rumex Crispus — Yellow Dock. 
The petioles are quite sour with free oxalic acid. 
100 grs. of the fresh petioles gave of 
Water, - 94*66 
Dry matter, ------- 5-34 
Ash, strongly alkaline, - - - - 1"03 
Organic matter, ------ 4'3l 
Ash calculated dry, 19-288 
Organic matter calculated diy, - - _ 80*7 12 
100 grs. of fresh leaf blades gave of 
Water, 8570 
Diy matter, - - 14-30 
Ash, very saline, ------ 2-18 
Organic matter, ------ 12-12 
Ash calculated dry, ----- 15-245 
Organic matter calculated dry, - - - 84-755 
100 grs. of the ash of the leaf blades and petioles, gave the fol- 
lowing: 
Carbonic acid, ------ 12-400 
Silicic acid, 3*900 
f Silicic acid, - - -050 
Phosphates 24-00 i ^-«'^^/ ^^^^^^^ ^^.^^^^ -O^O 
{ and phosphoric acid, - 23-830 
Lime, ^- 1-633 
Magnesia, - - - - - - -880 
Potash, 10-613 
Soda, 22-880 
Sodium, 3-889 
Chlorine, 5-920 
Sulphuric acid, - 1-477 
Organic acids, ------ 8-500 
96-092 
100 grs. of fresh petioles gave of oxalic acid -8363 of a grain, 
being almost 1 per cent of acid. 
Stalks from 18 to 42 inches high, woody, smooth at base, but 
becoming striated as you ascend. Slightly acid. 
100 grs. of the ash of stalks gave of 
Carbonid acid, ------ 12-800 
Silicic acid, - - 2-800 
(Silicic acid, - - -050 
Lime, - - - . 4-953 
Magnesia, - - - -850 
Phosphate of iron, - 1-100 
Phosphoric acid, - 14-747 
Lime, 2-590 
Magnesia, 2-040 
Potash, 12-430 
