Licence: In copyright
Credit: A short handbook of cosmetics / by Max Joseph. Source: Wellcome Collection.
![weak to strong concentrations unti] the desired colour is arrived at. The pyrogallic acid solution is of constant strength, and is labelled Solution I., whilst Solution II., which contains the nitrate of silver, varies accord- ing to the result desired : Solution I. (133) B Acid. pyrogallic. 0-5 gr. viii. Spt. vini conc. 12-0 3iii.ss. Aq. dest 38-0 3xi. Solution II. Light Brown to Fair. (134) R Argent. nit. 1-0 gr. xv. Ammon, pur. liquid. 3-0 gr. xlv. Aq. dest. 28-0 §i- Solution II. Brown. (135) R Argent. nit. 1-5 gr. xx. Ammon, pur. liquid. 4-5 gtt. lxx. Aq. dest 26-0 3vii. Solution II. Black to Dark Brown. (136) B Argent. nit. 2-5 gr. xxxv Ammon, pur. liquid. 7r5 3ü- Aq. dest 22-0 3vi. The instructions for use are as follows: The hair is first washed with a weak soda solution. This is bathed ofif with warm water, and the head dried with a fine towel,](https://iiif.wellcomecollection.org/image/b28138193_0088.jp2/full/800%2C/0/default.jpg)
