| A mixture of sulphite of calcium, chalk, and carbolic acid, or of sulphite and carbonate of lime. |
| Classifying the colours individually, the note says the black paste contains lead oxide, green has copper sulphate and the red has mercury sulphite. |
| A shrewd use of sulphite of quinine permits of certain curious operations, it appears. |
| They breathe compounds such as CO2, sulphate, sulphite, certain oxidised metals. |
| The solution is diluted with water, and treated with a solution of sulphite of soda. |
| The sodium sulphite method has the advantages of being clean and neat, and of requiring no nitration. |
