The rationale of this treatment is not fully understood, but the action appears to consist in the separation or decomposition of the aromatic hydrocarbons, fatty and other acids, phenols, tarry bodies, &c., which lower the quality of the oil, the sulphuric acid removing some, while the caustic soda takes out the remainder, and neutralizes the acid which has been left in the oil.
The residue is then dissolved in hot water, filtered, and the clear solution is mixed with very thin milk of lime so adjusted that it takes out one-half of the chlorine of the PbC1 2.
He then runs back the carriage and takes out the printed sheet, which he replaces by another sheet, and repeats the different operations for the next impression.
The standard nebula filter takes out a larger chunk of emission from orange out to the start of the nebula filter takes out a larger chunk of emission from orange out to the start of the nebula emission lines.
She puts her hands in our plates and helps herself, and when the dishes are passed, she grabs them and takes out whatever she wants.
