removing the cream which collects there. The skim milk tube is
provided with a screw regulator, the function of which is to enable
cream of any desired consistency to be obtained, varying with the
distance between the skim milk and cream points from the center of the
drum. Another point about these tubes is their use as elevating tubes
for the skim, milk and cream, as, owing to the velocity at which the
drum is rotating, the products can be delivered by these tubes at a
height of 8 or 10 feet above the machine if required, thus enabling
scalding and cooling of either to be carried on while the separator is
at work, and saving hand labor.--_Iron._

* * * * *




GAS FROM OIL.


At the twenty-fourth annual meeting of the Gas Institute, which was
recently held in Glasgow, Dr. Stevenson Macadam, F.R.S.E., lecturer on
chemistry, Edinburgh, submitted the first paper, which was on "Gas
from Oil."

He said that during the last seventeen years he had devoted much
attention to the photogenic or illuminating values of different
qualities of paraffin oils in various lamps, and to the production of
permanent illuminating gas from such oils. The earlier experiments
were directed to the employment of paraffin oils as oils, and the
results proved the great superiority of the paraffin oils as