156 Wisconsin Academy of Sciences, Arts, and Letters . 
LIQUOR POTASSAE ARSENITIS U. S. P. 1840 
Solution of Arsenite of Potassa 1 
Ingredients. 
Take of Arsenious Acid, 4 in 
small fragments, 5 
Pure Carbonate of Potassa, 
each, 6 sixty-four grains; 7 
Distilled Water 8 a sufficient 
quantity; 
Compound Spirit of Lavender 
half a fluidounce. 11 
Directions. 
Boil the Arsenious Acid and 
Carbonate of Potassa with twelve 
fluidounces 9 of Distilled Water, in 
a glass vessel, until the Acid is en¬ 
tirely dissolved. 10 To the solution, 
when cold, add the Spirit of Lav¬ 
ender, and afterwards sufficient 
Distilled Water to make it fill 
exactly the measure of a pint. 12 
LIQUOR POTASSAE ARSENITIS U. S. P. 1850 
Solution of Arsenite of Potassa 1 
Ingredients. 
Take of Arsenious Acid, 4 in 
small fragments, 5 
Pure Carbonate of Potassa, 6 
each, sixty-four grains ; 7 
Distilled Water 8 a sufficient 
quantity; 
Compound Spirit of Lavender 
half a fluidounce. 11 
Directions. 
Boil the Arsenious Acid and 
Carbonate of Potassa, in a glass 
vessel, with twelve fluidounces of 
Distilled Water, till the Acid is 
entirely dissolved. 10 To the solu¬ 
tion, when cold, add the Spirit of 
Lavender, and afterwards suf¬ 
ficient Distilled Water to make it 
fill exactly the measure of a pint. 12 
LIQUOR POTASSAE ARSENITIS U, S. P. 1860 
Solution of Arsenite of Potassa 1 
Ingredients. 
Take of Arsenious Acid, 4 in 
small pieces, 5 
Bicarbonate of Potassa, 6 each, 
sixty-four grains; 7 
Compound Spirit of Lavender 
half a fluidounce; 11 
Distilled Water 8 a sufficient 
quantity. 
Directions. 
Boil the Arsenious Acid and Bi¬ 
carbonate of Potassa, in a glass 
vessel, with twelve fluidounces 9 of 
Distilled Water till the Acid is 
entirely dissolved. 10 To the solu¬ 
tion, when cold, add the Com¬ 
pound Spirit of Lavender, and 
afterwards sufficient Distilled Wa¬ 
ter to make it measure a pint. 12 
