ubricators. Use
only the best of oil, one gallon of which is worth five gallons of cheap
stuff and do far better service, as inferior grades not only clog the
lubricator but chokes the ducts and blurs the sight-glass, etc., and the
refuse of such oil will accumulate in the cylinder sufficiently to cause
damage and loss of power, far exceeding the difference in cost of good
oil over the cheap grades.

After attaching a lubricator, all valves should be opened wide and live
steam blown through the outer vents for a few minutes to insure the
openings clean and free. Then follow the usual directions given with
all lubricators. Be particular in getting your lubricator attached so
it will stand perfectly plum, in order that the drop can pass up through
the glass without touching the sides, and keep the drop-nipple clean, be
particular to drain in cold weather.

Now, I am about to leave you alone with your engine, just as I have left
any number of young engineers after spending a day with them in the
field and on the road. And I never left one, that I had not already
made up my mind fully, as to what kind of an engineer he would make.

TWO WAYS OF READING __________

Now there are two ways to read this book, and if I know just how you had
read it I could tell you in a minute whether to take hold of an engine
or leave it alone. If you have read it one way, you are most likely to
say "it is no trick to run an engine." If you have read it the other way
you will say, "It is no trouble to learn how to run an engine." Now this
fellow will make an engineer, and will be a good one. He has read it
carefully, noting the drift of my advice. Has discovered that the
engineer is not expected to build an engine, or to improve it after it
has been built. Has recognized the fact that the principle thing is to
attend to his own business and let other people attend to theirs. That
a monkey wrench is a tool to be left in the tool box till he knows he
needs it. That muscle is a good thing to have but not necessary to the
successful engineer. That an engineer with a bunch of waste in his hand
is a better recommendation than an "engineer license." That good common
sense, and a cool head is the very best tools he can have. Has learned
that carelessness will get him into trouble, and that to "forget" costs
money.

Now the fellow who said "It is no trick to run an engine," read this
book another way. He did not see the little poi