rape oil is now used extensively for locomotives, for marine engines, and also for burning in lamps.
rape oil is entirely insoluble and floats like oil on the surface.
In commerce colza is classed with rape oil, to which both in source and properties it is very closely allied.
Heated to a high temperature and plunged, while hot, into a bath of rape oil kept cold by a water-bath.
If rape oil is present, the color will be partially restored.
For rape oil the limit is 50 per cent., and in smaller quantities the oil does not collect on the alcoholic solution.
Thus it is shown that rape oil is most destructive of the atmosphere, and that coal gas is the least destructive.
Hence I think the numbers above given conclusively demonstrate the resemblance between this oil and rape oil in composition.