...that of Schaller, is given by Watts (Diet. Chem., 1872, 1st suppl., p. 413)33 follows: " C. Schaller prepares this acid by precipitating the aqueous extract...sulphuric acid; again precipitating the filtrate with lead-acetate, and decomposing the precipitate with sulphuric acid, avoiding an excess; then precipitating...

...C. Schaller and is given by Watts (Diet. Chem., 1st suppl., 1872, p. 413) as follows:— " Schaller prepares this acid by precipitating the aqueous extract...lead acetate, and decomposing the precipitate with hydrogen sulphide. The filtered solution is evaporated to dryness; the residue dissolved in absolute...

...Schaller and is given by Watts (Diet. Chem., 1st suppl., 1872, p. 413) as follows : — " Schaller prepares this acid by precipitating the aqueous extract...lead acetate, and decomposing the precipitate with hydrogen sulphide. The filtered solution is evaporated to dryness ; the residue dissolved in absolute...

...that of Schaller, is given by Watts (Diet. Chem., 1872, 1st suppl, p. 413), as follows: "C. Schaller prepares this acid by precipitating the aqueous extract...; then precipitating a third time, and decomposing the precipitate with hydrogen sulphide. The filtered solution is evaporated to dryness ; the residue...

...that of Schaller, is given by Watts (Diet. Chem., 1872, 1st suppl., p. 413), as follows: "C. Schaller prepares this acid by precipitating the aqueous extract...; then precipitating a third time, and decomposing the precipitate with hydrogen sulphide. The filtered solution is evaporated to dryness ; the residue...

...acid by precipitating the aqueous extract of cochineal with neutral lead acetate acidulated slightly with acetic acid ; decomposing the washed precipitate...lead acetate and decomposing the precipitate with hydrogen sulphide. The filtered solution is evaporated to dryness ; the residue dissolved in absolute...

...Schaller and is given by "Watts (' Diet. Chem.,' 1st Suppl., 1872, p. 413) as follows:—" Schaller prepares this acid by precipitating the aqueous extract of cochineal with neutral lead acetate acidulated slightly with acetic acid; decomposing the washed precipitate with sulphuric acid ; again...

...that of Schaller, is given by Watts (Diet. Chem., 1872, ist suppl., p. 413) as follows: " C. Schaller prepares this acid by precipitating the aqueous extract...sulphuric acid ; again precipitating the filtrate with lead-acetate, and decomposing the precipitate with sulphuric acid, avoiding an excess ; then precipitating...