pig for a fat puppy.

In the trained pig the _use_ of his pig mind is developed to an unusual
degree of _activity_ and of _quality_ to save himself from punishment
and to gain the tidbits that reward his performance of tricks. The
purpose of the trainer is accomplished by changing and developing the
_mind functioning_ of the pig. No trainer would attempt to change the
_nature_ of a pig--to develop a pig into an elephant, a different
_creature_. Only _characteristics_ can be changed or developed.

[Sidenote: Plant Development]

Luther Burbank has accomplished with plants even more extraordinary
changes and developments in characteristics than have been achieved by
the most expert trainers of animals. He could not make a carrot into a
calla; but he did take the dwarf natural calla plant and develop it into
a splendid lily that bears flowers measuring a foot across the petal. He
also multiplied the characteristic colors of the natural calla and has
evolved great blossoms of a score of shades, from pure white to jet
black.

The noted plant wizard developed, too, the naturally small, hard, dry,
sour prune and transformed it into a juicy, sweet fruit that is bigger
and more delicious than our common plum.

He also succeeded in altering radically an element of the natural
walnut, which had a characteristic covering skin of bitter tannin over
the meat inside the nut shell. For countless centuries walnut trees had
been in the habit of covering the meat of their nuts with this tannin
skin. Luther Burbank trained selected walnut trees to give up this fixed
bad habit, and to produce nuts the meats of which were not enveloped in
bitter coverings.

[Sidenote: Man Making]

Since expert trainers have been able to accomplish such marvelous
changes and developments in the characteristics of lower animals and
plants--not changes in the form of life, but alterations so nearly
miraculous that they seem almost to be changes in nature--is there the
least doubt that you, a _man_, excelling every ot