t to keep
the line sufficiently taut to strike quickly and effectively a rising
trout, which as a rule ejects the artificial lure the instant he feels the
gritty impact of the steel.

In fishing down stream, the advocate of the principle that the greater the
surface commotion made by the flies used, the surer the rise and catch,
has an advantage over his brother who always fishes "fine" and with flies
that do not make a ripple. Drawing the artificial bugs across and slightly
up stream over the mirrored bosom of a pool is apt to leave a wake behind
them which may not inaptly be compared with the one created by a small
stern-wheel steamer; an unnatural condition of things, but of such is a
trout's make-up.

--W.C. HARRIS: _Fishing Up or Down Stream_.

+Theme CXV.+--_Persuade a friend, to choose some sport from one of the
following pairs:_--

1. Canoeing or sailing.
2. Bicycling or automobiling.
3. Golf or polo.
4. Basket ball or tennis.
5. Football or baseball.

+Theme CXVI.+--_Choose one side of a proposition. Name the probable points
on the other side and write out a refutation of them_.

+Theme CXVII.+--_State a proposition and write the direct argument._

+Theme CXVIII.+--_Exchange theme CXVII for one written by a classmate and
write the refutation of the arguments in the theme you receive._

(Theme CXVII and the corresponding Theme CXVIII should be read before the
class.)

SUMMARY

1. Argument is that form of discourse which attempts to prove the truth of
a proposition.

2. Inductive reasoning is that process by which from many individual cases
we establish the probable truth of a general proposition.

3. The establishing of a general truth by induction requires--
_a._ That there be a large number of facts, circumstances, or specific
instances supporting it.
_b._ That these facts be true.
_c._ That they be pertinent.
_d._ That there be no facts proving the truth of the contrary
proposition.

4. Deductive reasoning is that process which attempts to prove the truth
of a specific proposition by showing that a general theory applies to it.

5. The establishing of the truth of a specific proposition by deductive
reasoning requires--
_a._ A major premise that makes an affirmation about _all_ the members
of a class.
_b._ A minor premise that states that the individual under consideration
belongs to the class named.
_c._ A conclusion