236 
Name of Solvent or 
Reagent. 
Lime—Sulphate, 5 grs. 
Magnesia— 
Sulphate, 5 grs. 
Eartus PropEr— 
Alumina— 
Alum, 5 grs. 
Combinations of 
Limeandsal-ammoniac, lg. 
Macerated cold 
—— warm 
Common salt and nitre, 2 g. 
macerated cold 
macerated warm 
Carbonate of soda&nitre,3e. 
— cold 
ate warm 
IV. Merats, and their salts— 
Iron—perchloride, solution 
— sulphate, 1 gr. 
Arsenious acid, 1 gr. 
Copper—sulphate, 1 gr. 
Lead—acetate, 2 grs. 
Zinc—sulphate, 2 grs. 
V. Acips— 
Acetic—common vinegar 
— strong vinegar 
W. Lauder Lindsay’s Haperiments on the 
Roccella tinctoria. 
Period 
of Macera- 
tion. aie. 
14 days |Nearly unchanged 
14 days |Light brownish-red 
14 days |Colourless 
14 days |Light orange-red 
4 days |Deep orange-red 
14 days |Deep sherry 
4 days |Fine claret 
14 days |Deep claret 
4 days 
7 days |Unaltered 
7 days |Unaltered 
7 days |Brownish-red 
7 days |Unaltered 
7 days |Nearly unaltered 
7 days 
14 days |Unaltered 
14 days is 
— _ pyroligneous acid} 14 days 
Nitric—strong 
a dilute 
— — cold 
— — warm 
Muriatic—strong 
— dilute 
— — cold 
— — warm 
Oxalic, 1 gr. 
Sulphuric—strong 
—_ dilute 
— — cold 
_ — warm 
Tartaric, 2 grs. 
1 day Colourless- 
14 days 
14 days 
1 day lorie 
14 days 
14 days 
14 days 
1 day 
14 days 
14 days 
14 days Brownisharell 
Vide Explanation, p. 248. 
Thin variety from 
Thickest variety from | 
Lima. 
Light brownish-red 
Light brownish-red— 
Light claret 
Deep claret 
Purple-red 
Deep red 
Deep claret 
Deep purple-red 
Unaltered 
Brownish- tan 
Unaltered 
Brownish-red 
Unaltered 
Unaltered 
Colourless 
Colpunless “ 
| 
~ sep 
; 
: 
| 
2F es - 
Sen 
5 20] 
=e ee 
a 
