n., but Con.]

(Spade, Dig.) (Razor, Shaving.) (Coffin, Burial.) (Chair, Sitting.)
(Scythe, Cut.) (Sword, Wound.) (Pen, Write.) (Ears, Hearing.)
(Road, Travel.) (Food, Eating.) (Paper, Write.) (Wine, Drink.)
(Worm, Crawl.) (Bird, Fly.) (Eagle, Swoop.) (Hawk, Hover.) (Ram, Butt.)
(Teeth, Gnash.) (Wheel, Turn.)

THE BRAIN TONIC EFFECT OF THE LAWS OF MEMORY RIGHTLY APPLIED.

FIRST LAW OF MEMORY.

=Building.= } In. by G. & S.
=Dwelling.= }

If we examine the _meaning_ of these two words--Building and Dwelling,
we find that both indicate _structures made by man_. This idea is
_common_ to both. Now when we find that two words express the same
thought, either completely or partially, we say that it is a case of
Inclusion, because the pair of words contains or includes the same idea.
Inclusion is the first law of memory.

There are several kinds of Inclusion. What variety have we here? Let us
see. Building applies to many kinds of structures; _house_, _stable_,
_church_, _depot_, _store_, etc. It is applicable to all of these in a
general way, but it designates none of them. But dwelling means a
_special_ kind of structure--_a building occupied by man_--a place to
live in. This pair of words therefore illustrates Inclusion by Genus and
Species, indicated by the abridgement, In. G. & S. or simply by In.
Other examples: "Planet, Mars;" "Mountain, Vesuvius;" "River,
Mississippi;" "Building Material, Potsdam Sandstone;" "Fruit, Peaches."

We may for convenience include in this class, cases of the Genus and the
_Individual_ as "Man and George Washington;" "Judge, Hon. John Gibson;"
"New Yorker, Hon. W. W. Astor;" and cases of Species and the Individual,
as, "Frenchman and Guizot;" "American, Abraham Lincoln." And also
Co-equal Species under a common Genus, as under "Receiver" we may
include "Can" and "Bin"--under carnivorous birds we may include the
Eagle and the Hawk. "Head-Covering, Hat, Cap;" "Hand-covering, Gloves,
Mittens;" "Foot-covering, Boot, Shoe."

=Dwelling.= } Synonymous In.
=House.= }

_Inhabitability by man_ is the thought common to both of these words.
Being _nearly alike_ in meaning, we call them a case of Synonymous
Inclusion, indicated by "Syn. In." Other cases: "Near, Close to;"
"Likeness, Resemblance;" "Lift, Raise;" "Meaning, Signification;" "John,
Jack;" "James, Jim;" "Elizabeth, Bessy;" "Margaret, Maggy;" "Gertrude,
Gertie;" "Ellen, Nellie."

=House.= } In. by Whol