Ashes of the Flax Plant. 113 



Protoxide of iron .... 6*633 



Lime 8-435 



Magnesia ]'369 



Soda 11-607 



Potash . 4-181 



Sulphuric acid ..... 8-435 



Muriatic acid . . . . . 8-682 



Phosphoric acid .... no trace 



Carbonic acid, with organic 1 -/% /- m 

 ,. , , ^ > 50*658 



matter and loss . . J 



100-000 



No. 3. This water is from a large pond similar to that from 



which No, 1 is taken, but from a different part of the country, 



and a much larger body of water. 



It was clear, containing but very little suspended matter. 



100,000 grains left on evaporation 50*68 grains of solid 



residue, which consisted of, per cent., — 



Protoxide of iron .... 2*584 



Lime 17*829 



Magnesia 1-530 



Soda 30*232 



Potash ....... 15-762 



Sulphuric acid 11-627 



Muriatic acid 2-580 



Phosphoric acid .... no trace 



Carbonic acid, with organic^! , >, ^ -^ 

 11 ° ^ 17*856 



matter and loss • • J 



100-000 



No. 4. This water is from the river Lys, so celebrated for 



its steeping qualities. It was taken from the river in France 



before it had reached the highest retting place. The specimen 



was clean, but there was some suspended matter, principally 



organic. 



100,000 grains, evaporated to dryness, left a residue of 45-1 1 



grains, consisting of, in 100 parts, — 



Protoxide of iron .... 6-200 



Lime 5-484 



Magnesia 1-192 



Soda 28-298 



Potash 5-405 



Sulphuric acid 9*300 



Muriatic acid 7*754 



Phosphoric acid .... -079 



Carbonic acid, with organic"! 



matter and loss . . J___^ 



100-000 



Phil. Mag. S. 3. Vol. 31 . No. 206. Aug. 1 847. I 



