Cylinder Oil" and "Jones's Patent Pain-Killer" being in one and
the same category. Then they warn--patent medicine methods again
--purchasers of machines that their particular brand of oil must
be used to insure best results.

The one sure result is that the average user who knows nothing
about lubricating oils is kept in a state of frantic anxiety lest
his can of oil runs low at a time and place where he cannot get
more of the patent brand.

Every manufacturer should embody in the directions for caring for
the machine information concerning all the standard oils that can
be found in most cities, and recommend the use of as many
different brands as possible.

Machine oil can be found in almost any country village, or at any
mill, factory, or power-house along the road; it is the cylinder
oil that requires fore-thought and attention.

Beware of steam-cylinder oil and all heavy and gummy oils. Rub a
little of any oil that is offered between the fingers until it
disappears,--the better the oil the longer you can rub it. If it
leaves a gummy or sticky feeling, do not use; but if it rubs away
thin and oily, it is probably good. Of course the oiliest of oils
are animal fats, good lard, and genuine sperm; but they work down
very thin and run away, and genuine sperm oil is almost an unknown
quantity. Lard can be obtained at every farmhouse, and may be
used, if necessary, on bearings.

In an emergency, olive oil and probably cotton-seed oil may be